Edgar Filing: NETWORK 1 SECURITY SOLUTIONS INC

NETWORK-1 SECURITY SOLUTIONS, INC.

Filed Pursuant to Rule 424(b)(3)
Registration No. 333-126013

PROSPECTUS SUPPLEMENT NO. 6
(To Prospectus dated December 22, 2005)

This is a prospectus supplement to our prospectus dated December 22, 2005 (the
"Prospectus") relating to the resale from time to time by selling stockholders
of up to 16,886,267 shares of our Common Stock, including shares issuable upon
exercise of outstanding warrants and options. On April 11, 2006, we filed with
the Securities and Exchange Commission an Annual Report on Form 10-KSB. The text
of the Annual Report on Form 10-KSB is attached to and a part of this
supplement.

This prospectus supplement should be read in conjunction with the Prospectus and
the prior prospectus supplements, and may not be delivered or utilized without
the Prospectus and the prior prospectus supplements. This prospectus supplement
is qualified by reference to the Prospectus, except to the extent that the
information provided by this prospectus supplement supersedes the information
contained in the Prospectus.

The securities offered by the Prospectus involve a high degree of risk. You
should carefully consider the "Risk Factors" referenced on page 7 of the
Prospectus in determining whether to purchase the Common Stock.

The date of this prospectus supplement is April 12, 2006.

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U. S. Securities and Exchange Commission

WASHINGTON, D.C. 20549

FORM 10-KSB

[X] ANNUAL REPORT UNDER SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE
ACT OF 1934

For the fiscal year ended December 31, 2005.

[_] TRANSITION REPORT UNDER SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE
ACT OF 1934

For the transition period from ____________ to ___________.

Commission File Number: 1-14896

NETWORK-1 SECURITY SOLUTIONS, INC.
(Name of Small Business Issuer in its Charter)

DELAWARE 11-3027591
(State or Other Jurisdiction (IRS Employer
of Incorporation) Identification Number)

445 PARK AVENUE, SUITE 1028
NEW YORK, NEW YORK 10022
(Address of Principal Executive Offices)

Issuer's Telephone Number (Including Area Code): (212) 829-5770

Securities registered under Section 12(b) of the Exchange Act:

Name of each exchange
Title of each class on which registered
------------------- -------------------
Common Stock, $.01 par value None

Securities registered under Section 12(g) of the Exchange Act:
None

Check whether the issuer is not required to file reports pursuant to
Section 13 or 15(d) of the Exchange Act. [_]

Check whether the issuer (1) filed all reports required to be filed by
Section 13 or 15(d) of the Exchange Act during the past 12 months (or for such
shorter period that the registrant was required to file such reports), and (2)
has been subject to such filing requirements for the past 90 days.
Yes [X] No [_]

Check if there is no disclosure of delinquent filers in response to Item
405 of Regulation S-B contained in this form, and no disclosure will be
contained, to the best of registrant's knowledge, in definitive proxy or
information statements incorporated by reference in Part III of this Form 10-KSB
or any amendment to this Form 10-KSB. [X]

Indicate by check mark whether the registrant is a shell company (as
defined in Rule 12b-2 of the Exchange Act). [ ] No [X]

The issuer's revenues for its most recent fiscal year: $0.

The aggregate market value of the voting common stock of the registrant
held by non-affiliates computed by reference to the price at which the stock was
sold on March 24, 2006 was approximately $17,469,443.

The number of shares of Common Stock outstanding as of March 24, 2006 was
19,049,724.

Transitional Small Business Disclosure Format (Check One): Yes [_] No [X]

================================================================================

NETWORK-1 SECURITY SOLUTIONS, INC.
2004 FORM 10-KSB ANNUAL REPORT

TABLE OF CONTENTS

Page
----

PART I.........................................................................2

ITEM 1. DESCRIPTION OF BUSINESS............................................2

ITEM 2. DESCRIPTION OF PROPERTY...........................................13

ITEM 3. LEGAL PROCEEDINGS.................................................13

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS...............14

PART II.......................................................................15

ITEM 5. MARKET FOR COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND
SMALL BUSINESS ISSUER PURCHASES OF EQUITY SECURITIES..............15

ITEM 6. MANAGEMENT'S DISCUSSION AND ANALYSIS OR PLAN OF OPERATION.........16

ITEM 7. FINANCIAL STATEMENTS..............................................19

ITEM 8. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON
ACCOUNTING AND FINANCIAL DISCLOSURE...............................19

ITEM 8A. CONTROLS AND PROCEDURES...........................................19

ITEM 8B. OTHER INFORMATION.................................................20

PART III......................................................................20

ITEM 9. DIRECTORS AND EXECUTIVE OFFICERS; PROMOTERS AND CONTROL PERSON;
COMPLIANCE WITH SECTION 16(A) OF THE EXCHANGE ACT.................20

ITEM 10. EXECUTIVE COMPENSATION............................................24

ITEM 11. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
AND RELATED STOCKHOLDER MATTERS...................................27

ITEM 12. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS....................31

ITEM 13. EXHIBITS LIST.....................................................33

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES............................35

SIGNATURES....................................................................36

PART I

THIS ANNUAL REPORT ON FORM 10-KSB CONTAINS CERTAIN STATEMENTS WHICH ARE
FORWARD-LOOKING STATEMENTS THAT ARE STATEMENTS THAT INCLUDE INFORMATION BASED
UPON BELIEF OF THE COMPANY'S MANAGEMENT, AS WELL AS ASSUMPTIONS MADE BY AND
INFORMATION AVAILABLE TO MANAGEMENT. STATEMENTS CONTAINING TERMS SUCH AS
"BELIEVES", "EXPECTS", "ANTICIPATES", "INTENDS" OR SIMILAR WORDS ARE INTENDED TO
IDENTIFY FORWARD LOOKING STATEMENTS. ACTUAL RESULTS, EVENTS AND CIRCUMSTANCES
(INCLUDING FUTURE PERFORMANCE, RESULTS AND TRENDS) COULD DIFFER MATERIALLY FROM
THOSE SET FORTH IN SUCH STATEMENTS DUE TO VARIOUS RISKS AND UNCERTAINTIES,
INCLUDING BUT NOT LIMITED TO, THOSE DISCUSSED IN THE SECTION ENTITLED "RISK
FACTORS THAT MAY AFFECT FUTURE RESULTS" IN ITEM 1 OF THIS REPORT AS WELL AS
THOSE RISKS DISCUSSED ELSEWHERE IN THIS REPORT.

ITEM 1. DESCRIPTION OF BUSINESS.

OVERVIEW

The principal business of the Company is the acquisition, development,
licensing and protection of its intellectual property. The Company presently
owns six patents covering various telecommunications and data networking
technologies. The Company's strategy is to pursue licensing and strategic
business alliances with companies in industries that manufacture and sell
products that make use of the technologies underlying its patents as well as
with other users of the technologies who benefit directly from the technologies
including corporate, educational and governmental entities.

On November 18, 2003, the Company acquired a portfolio of
telecommunications and data networking patents (the "Patent Portfolio") from
Merlot Communications, Inc., a broadband communications solutions provider. In
February 2004, following the acquisition of the Patent Portfolio and its review
of applicable markets, the Company commenced initial efforts to license its
patent (U.S. Patent No. 6,218,930) covering the control of power delivery over
Ethernet cables (the "Remote Power Patent"). The Patent Portfolio consists of
six patents (including the Remote Power Patent) issued by the U.S. Patent Office
that relate to various telecommunications and data networking technologies and
includes, among other things, patents covering systems and methods for the
transmission of audio, video and data over local area networks (LANS) in order
to achieve higher quality of service (QoS) and the control of power delivery
over LANs for the purpose of remotely powering network devices.

THE PATENTS

The Company's Patent Portfolio consist of the following patents:

U.S. PATENT NO. 6,218,930: APPARATUS AND METHOD FOR REMOTELY POWERING
ACCESS EQUIPMENT OVER A 10/100 SWITCHED ETHERNET NETWORK;

U.S. PATENT NO. 6,577,631: COMMUNICATION SWITCHING MODULE FOR THE
TRANSMISSION AND CONTROL OF AUDIO, VIDEO, AND COMPUTER DATA OVER A SINGLE
NETWORK FABRIC;

U.S. PATENT NO. 6,574,242: METHOD FOR THE TRANSMISSION AND CONTROL OF
AUDIO, VIDEO, AND COMPUTER DATA OVER A SINGLE NETWORK FABRIC;

U.S. PATENT NO. 6,570,890: METHOD FOR THE TRANSMISSION AND CONTROL OF
AUDIO, VIDEO, AND COMPUTER DATA OVER A SINGLE NETWORK FABRIC USING ETHERNET
PACKETS;

U.S. PATENT NO. 6,539,011: METHOD FOR INITIALIZING AND ALLOCATING
BANDWIDTH IN A PERMANENT VIRTUAL CONNECTION FOR THE TRANSMISSION AND CONTROL OF
AUDIO, VIDEO, AND COMPUTER DATA OVER A SINGLE NETWORK FABRIC; AND

U.S. PATENT NO. 6,215,789: LOCAL AREA NETWORK FOR THE TRANSMISSION AND
CONTROL OF AUDIO, VIDEO, AND COMPUTER DATA.

The Company's future success is largely dependent upon its proprietary
technologies, its ability to protect its intellectual property rights and
consummate license agreements with respect to its Patent Portfolio. The
complexity of patent and common law, combined with the Company's limited
resources, create risk that its efforts to protect its proprietary technologies
may not be successful. The Company cannot be assured that its patents will be
upheld, or that third parties will not invalidate its patents. In August 2005,
the Company commenced patent litigation against D-Link Corporation and D-Link
Systems, Incorporated for infringement of the Company's patent covering remote
delivery of power over Ethernet cables (US Patent No. 6,218,930) (See Risk
Factors "We face uncertainty as to the outcome of litigation with D-Link").

The Remote Power Patent application was filed on March 11, 1999 and the
patent was granted by the U.S. Office of Patent and Trademark on April 21, 2001.
The Remote Power Patent expires on March 11, 2020.

As of March 24, 2005, the Company transmitted letters to approximately 85
companies offering licenses to the Remote Power Patent. To date the Company has
not entered into any license agreements with third parties.

The Company was incorporated under the laws of the State of Delaware in
July 1990. The Company's offices are located at 445 Park Avenue, Suite 1028, New
York, New York 10022 and its telephone number is (212) 829-5770.

MARKET OVERVIEW

Management has determined that the Company's initial licensing efforts will
be focused on its Remote Power Patent. U.S. Patent No. 6,218,930 relates to
several technologies which describe a methodology for controlling the delivery
of power to certain devices over an Ethernet network.

The Institute of Electrical and Electronic Engineers (IEEE) is a
non-profit, technical professional association of more than 360,000 individual
members in approximately 175 countries. The Standards Association of the IEEE is
responsible for the creation of global industry standards for a broad range of
technology industries. In 1999, at the urging of several industry vendors, the
IEEE formed a task force to facilitate the adoption of a standardized
methodology for the delivery of remote power over Ethernet networks which would
insure interoperability among vendors of switches and terminal devices. On June
13, 2003 the IEEE Standards Association approved the 802.3af Power Over Ethernet
standard (the "Standard"), which covers technologies deployed in delivering
power over Ethernet cables. The Standard provides for the Power Sourcing
Equipment (PSE) to be deployed in switches or as standalone midspan hubs to
provide power to remote devices such as wireless access points, IP phones and
network based cameras. The technology is commonly referred to as Power Over
Ethernet ("PoE"). The Company believes its Remote Power Patent covers several of
the key technologies covered by the Standard.

Ethernet is the leading local area networking technology in use today. PoE
technology allows for the delivery of power over Ethernet cables rather than by
separate power cords. As a result, a variety of network devices, including IP
telephones, wireless LAN Access Points, web-based network security cameras, data
collection terminals and other network devices, will be able to receive power
over existing data cables without the need to modify the existing infrastructure
to facilitate the provision of power for such devices through traditional AC
outlets. Advantages such as lower installation costs, remote management
capabilities, lower maintenance costs, centralized power backup, and flexibility
of device location as well as the advent of worldwide power compatibility create
the possibility of PoE becoming widely adopted in networks throughout the world.

PoE provides numerous benefits including quantifiable returns on
investment. The cost of hiring electricians to pull power cable to remote
locations used for access points or security cameras can rival or exceed the
cost of the devices. Another key benefit is the need for Voice over IP power
reliability in the face of power failures. Using PoE enables data center power
supply systems to ensure on-going power - a function that would be difficult and
expensive to implement if each phone required AC outlets.

These and other advantages such as remote management capabilities, lower
maintenance costs, and flexibility of device location have led to forecasts that
PoE will be widely adopted in networks throughout the world. International Data
Corporation (IDC) forecasts that the annual PoE sales will reach 134 million PSE
switch ports (does not include midspan ports) by 2008 which equates to a 5 year
compound annual growth rate of 63%. Venture Development Corporation, a market
research firm, expects the global market for PoE enabled solutions will grow to
$9 billion in 2008, a compound annual growth rate of 36%.

The benefits of PoE are compelling as evidenced by the introduction of
products by such leading vendors as 3Com, Siemens, Nortel Networks and Avaya, as
well as many others. In February 2004, Cisco Systems, Inc., the world's largest
network switch manufacturer, announced that all of its switches will ultimately
be PoE enabled. The Company believes the cost savings as well as the other
benefits that can be realized by utilizing the technology contained in the
Remote Power Patent may be of significant importance to the growth of the
Wireless Local Area Networking (WLAN) industry and Voice Over IP Telephony
(VOIP) industry.

The ability to supply power to end-devices through Ethernet cables can be
applied to other end-devices, such as advanced security cameras, RFID card
readers, laptop computers, personal digital assistants and portable digital
music players. As the desire to connect more end-devices to the Ethernet network
grows, the Company believes that PoE technology will become more widely used as
a method to power these end-devices.

The Company also owns five (5) additional patents covering various
methodologies that provide for allocating bandwidth and establishing Quality of
Service for delay sensitive data, such as voice, on packet data networks.
Quality of Service issues become important when data networks carry packets that
contain audio and video which may require priority over data packets traveling
over the same network. Covered within these patents are also technologies that
establish bi-directional communications control channels between
network-connected devices in order to support advanced applications on
traditional data networks. The Company believes that potential licensees of the
technologies contained in these patents would be vendors deploying applications
that require the low latency transport of delay sensitive data such as video
over data networks.

NETWORK-1 STRATEGY

The Company's strategy is to capitalize on its Patent Portfolio through
entering into licensing arrangements with third parties including manufacturers
and users that utilize the Patent Portfolio's proprietary technologies as well
as any additional proprietary technologies covered by patents which may be
acquired by the Company in the future. The Company will also seek to enter into
licensing arrangements with users of the proprietary technologies, including
corporate, educational and governmental entities in those cases where the patent
rights extend to the users of the technologies contained in manufactured
products.

The Company does not anticipate manufacturing products utilizing the Patent
Portfolio or any of the proprietary technologies contained in the Patent
Portfolio. Accordingly, the Company does not anticipate establishing a
manufacturing, sales or marketing infrastructure. Consequently, the Company
believes that its capital requirements will be less than the capital
requirements for companies with such infrastructure requirements.

In connection with the Company's activities relating to the protection of
its Patent Portfolio, it may be necessary to assert patent infringement claims
against third parties that the Company believes are infringing its Patent
Portfolio, as is the case with the Company's litigation against D-Link (See
"Item 3 Legal Proceedings - D-Link litigation").

MARKETING AND DISTRIBUTION

In February 2004, the Company commenced licensing efforts for its Remote
Power Patent. The Company believes that potential licensees include, among
others, Wireless Local Area Networking (WLAN) equipment manufacturers, Local
Area Networking (LAN) equipment manufacturers, Voice Over IP Telephony (VOIP)
equipment manufacturers, and Network Camera manufacturers. In addition, the
Company believes that additional potential licensees include users of the
equipment embodying the PoE technology covered by its Remote Power Patent,
including corporate, educational and federal, state and local government users,
as they are significant beneficiaries of the technologies covered by the Remote
Power Patent.

ThinkFire Agreement

On November 30, 2004, the Company entered into a Master Services Agreement
(the "Agreement") with ThinkFire Services USA, Ltd. ("ThinkFire") pursuant to
which ThinkFire has been granted the exclusive (except for direct efforts by the
Company and related companies) worldwide rights to negotiate license agreements
for the Company's Remote Power Patent with respect to certain potential
licensees agreed to between the parties. Either the Company or ThinkFire may
terminate the Agreement upon 60 days notice for any reason or upon 30 days
notice in the event of a material breach. The Company has agreed to pay
ThinkFire a fee not to exceed 20% of the royalty payments received from license
agreements consummated by ThinkFire on its behalf.

POWER UP LICENSING PROGRAM

On September 8, 2005, the Company commenced a Power Up licensing program
for its Remote Power Patent. Beginning September 8, 2005 for a limited period of
time vendors of Power over Ethernet power sourcing equipment (PSE) and powered
devices (PD) may license the Remote Power Patent at a substantial discount from
the Company's standard reasonable and non-discriminatory royalty rates and a
discount from standard license origination fees. Upon completion of the Power Up
program, the Company will only offer licenses on its standard terms and
conditions, which will include higher royalty rates and full license origination
fees.

LEGAL REPRESENTATION

In August 2005, the Company entered into an agreement with Blank Rome, LLP
("Blank Rome"), a national law firm, pursuant to which Blank Rome has been
engaged to represent the Company in connection with all litigation involving the
Remote Power Patent. Blank Rome has agreed to represent the Company with respect
to each litigation pertaining to the Remote Power Patent on a full contingency
basis (except for any proceeding before the International Trade Commission). As
compensation for its services on a full contingency basis, Blank Rome will
receive from the Company percentages of Net Consideration (as defined in the
Agreement) ranging from 12.5% to 35% received by the Company by way of
settlement or judgment in connection with each litigation matter. The Company
has also agreed to compensate Blank Rome in an amount equal to 10% of the Net
Consideration received by the Company from certain designated parties mutually
agreed upon by the Company and Blank Rome (the "Designated Parties") in the
event the Designated Parties enter into license agreements or similar agreements
with the Company.

The Agreement may be terminated by either Blank Rome or the Company upon 30
days notice. If the Company elects to terminate the Agreement, it will
compensate Blank Rome in an amount equal to 5% of the Net Consideration received
by the Company from the Designated Parties with whom Blank Rome has not
commenced litigation on its behalf; provided, that such parties had substantive
licensing or settlement discussions related to the Remote Power Patent during
the term of the Agreement and entered into a license agreement or similar
agreement with the Company providing for Net Consideration within the 12 month
period following termination. In addition, in the event of termination, Blank
Rome will receive its pro-rata share of Net Consideration based upon its hourly
time charges with respect to parties against whom Blank Rome commenced
litigation (or defended) on behalf of the Company. In the event the Company's
agreement with Blank Rome is terminated, depending upon its financial resources
at the time, the Company may need to enter into a contingent fee agreement with
a new law firm in order to enforce and/or defend its Remote Power Patent and the
Company' inability to secure such an arrangement on satisfactory terms and on a
timely basis may have a material adverse effect on the Company's ability to
achieve license arrangements with respect to its Remote Power Patent.

With respect to the Company's litigation with D-Link relating to the Remote
Power Patent (see Item 3 "Legal Proceedings - D-Link Litigation"), in addition
to the services of Blank Rome on a contingency basis, the Company has also
retained the services of Potter Mitton, P.C. (Tyler, Texas) on an hourly basis
to serve as local counsel.

COMPETITION

The telecommunications and data networking licensing market is
characterized by intense competition and rapidly changing business conditions,
customer requirements and technologies. The Company's current and potential
competitors have longer operating histories, greater name recognition and
possess substantially greater financial, technical, marketing and other
competitive resources than the Company. Although Management believes that the
Company has enforceable patents relating to telecommunications and data
networking, there can be no assurance that the Patent Portfolio will be upheld
or that third parties will not invalidate any or all of the patents in the
Patent Portfolio. In addition, the Company's current and potential competitors
may develop technologies that may be more effective than the Company's
proprietary technologies or that would render the Company's technologies less
marketable or obsolete. The Company may not be able to compete successfully.

In addition, other companies may develop competing technologies that offer
better or less expensive alternatives to PoE and the other technologies covered
by the Patent Portfolio. Several companies have notified the IEEE that they may
have patents and proprietary technologies that are covered by the Standard. In
the event any of those companies assert claims relating to its patents, the
licensing royalties available to the Company may be limited. Moreover,
technological advances or entirely different approaches developed by one or more
of its competitors or adopted by various standards groups could render the
Company's Remote Power Patent obsolete, less marketable or unenforceable.

EMPLOYEES AND CONSULTANTS

As of March 31, 2006, the Company had one full time employee, no part time
employees and three consultants.

RISK FACTORS THAT MAY AFFECT FUTURE RESULTS

The Company operates in a highly competitive environment that involves a
number of risks, some of which are beyond the Company's control. The following
discussion highlights the most material of the risks.

WE HAVE A HISTORY OF LOSSES AND NO REVENUE FROM CURRENT OPERATIONS.

We have incurred substantial operating losses since our inception, which
has resulted in an accumulated deficit of $(44,321,000) as of December 31, 2005.
For the years ended December 31, 2005 and 2004, we incurred net losses of
$(1,332,000) and $(1,953,000), respectively. We have financed our operations
primarily by sales of equity securities. Since December 2002, when we
discontinued our security software products and following the commencement of
our new technology licensing business in November 2003, we have had no revenue
from operations for the years ended December 31, 2004 and December 31, 2005. Our
ability to achieve revenue and generate positive cash flow from operations is
dependent upon consummating licensing agreements with respect to our patented
technology. We may not be successful in achieving licensing agreements with
third parties and our failure to do so would have a material adverse effect on
our business, financial condition and results of operations. We may not be able
to achieve revenue or generate positive cash flow from operations from our new
licensing business.

WE COULD BE REQUIRED TO STOP OPERATIONS IF WE ARE UNABLE TO DEVELOP OUR
TECHNOLOGY LICENSING BUSINESS OR RAISE CAPITAL WHEN NEEDED.

We anticipate, based on our currently proposed plans and assumptions
relating to our operations (including the timetable of costs and expenses
associated with our continued operations), that our cash position of
approximately $2,034,005 at March 31, 2006 will more likely than not be
sufficient to satisfy our operations and capital requirements until December
2007. However, we may expend our funds prior thereto. In the event our plans
change, or our assumptions change or prove to be inaccurate (due to
unanticipated expenses, difficulties, delays or otherwise), we could have
insufficient funds to support our operations prior to December 2007. Our
inability to obtain additional financing when needed, absent generating
sufficient cash from licensing arrangements, would have a material adverse
effect on the Company, requiring us to curtail or possibly cease our operations.
In addition, any additional equity financing may involve substantial dilution to
the interests of our then existing stockholders.

OUR LICENSING BUSINESS MAY NOT BE SUCCESSFUL.

In November 2003, we entered the technology licensing business following
our acquisition of six patents relating to various telecommunications and data
networking technologies including, among others, patents covering the delivery
of remote power over Ethernet and the transmission of audio, video and data over
computer and telephony networks. Accordingly, we have a limited history in the
technology licensing business upon which an evaluation of our prospects and
future performance can be made. Our prospects

must be considered in light of the risks, expenses and difficulties frequently
encountered in the development, operation and expansion of a new business based
on patented technologies in a highly specialized and competitive market. We may
not be able to achieve revenue or profitable operations from our new licensing
business.

OUR FUTURE SOURCE OF LICENSING REVENUE IS UNCERTAIN.

In February 2004, we initiated our first licensing efforts relating to the
technologies in our remote power patent (U.S. Patent No. 6,218,930) (the "Remote
Power Patent"). To date, we have not entered into any licensing agreements with
third parties with respect to our Remote Power Patent or our other patented
technologies. Our inability to consummate licensing agreements and achieve
revenue from our patented technologies would have a material adverse effect on
our operations and our ability to continue our business. In addition, in the
event we consummate license arrangements with third parties, such arrangements
are not likely to produce a stable or predictable stream of revenue in the
foreseeable future. Furthermore, the success of our licensing efforts depends
upon the strength of our intellectual property rights.

WE ARE CURRENTLY RELYING UPON THE EFFORTS OF THINKFIRE TO CONSUMMATE
LICENSING AGREEMENTS FOR OUR REMOTE POWER PATENT WITH CERTAIN SELECT
POTENTIAL LICENSEES.

On November 30, 2004, we entered into a Master Services Agreement (the
"Agreement") with ThinkFire Services USA, Ltd. ("ThinkFire") pursuant to which
we granted ThinkFire the exclusive (except for us and related companies)
worldwide rights to negotiate license agreements for our Remote Power Patent
with respect to certain potential licensees agreed to between the parties.
Either we or ThinkFire can terminate the Agreement upon 60 days notice for any
reason or upon 30 days notice in the event of a material breach. We have agreed
to pay ThinkFire a fee not to exceed 20% of the royalty payments received from
license agreements consummated by ThinkFire on our behalf. ThinkFire may not be
successful in consummating license agreements on our behalf and even if such
agreements are consummated they may not result in significant royalty payments
to us.

OUR SUCCESS IS DEPENDENT UPON OUR ABILITY TO PROTECT OUR PROPRIETARY
TECHNOLOGIES.

Our success is substantially dependent upon our proprietary technologies
and our ability to protect our intellectual property rights. We currently hold 6
patents issued by the U.S. Patent Office that relate to various
telecommunications and data networking technologies and include among other
things, patents covering the transmission of audio, voice and data over computer
and telephony networks and the delivery of remote PoE networks. We rely upon our
patents and trade secret laws, non-disclosure agreements with our employees,
consultants and third parties to protect our intellectual property rights. The
complexity of patent and common law, combined with our limited resources, create
risk that our efforts to protect our proprietary technologies may not be
successful. We cannot assure you that our patents will be upheld or that third
parties will not invalidate our patent rights. In the event our intellectual
property rights are not upheld, such an event would have a material adverse
effect on us.

WE ARE CURRENTLY RELYING UPON OUR CONTINGENCY FEE AGREEMENT WITH BLANK
ROME.

In August 2005, we entered into an agreement with Blank Rome, LLP ("Blank
Rome"), a national law firm, pursuant to which Blank Rome has been engaged to
represent us in connection with all litigation involving our Remote Power
Patent. Blank Rome has agreed to represent us with respect to each litigation
pertaining to the Remote Power Patent on a full contingency basis (except for
any proceeding before the International Trade Commission). As compensation for
its services on a full contingency basis, Blank Rome will receive from us
percentages of Net Consideration (as defined in the Agreement) ranging from
12.5% to 35% received by us by way of settlement or judgment in connection with
each litigation matter. We have also agreed to compensate Blank Rome in an
amount equal to 10% of the Net Consideration received by us from certain
designated parties mutually agreed upon by us and Blank Rome (the "Designated
Parties") in the event such Designated Parties enter into license agreements or
similar agreements with us.

The Agreement may be terminated by either Blank Rome or us upon 30 days
notice. If we elect to terminate the Agreement, we will compensate Blank Rome in
an amount equal to 5% of the Net Consideration received by us from the
Designated Parties with whom Blank Rome has not commenced litigation on our
behalf, provided that such parties had substantive licensing or settlement
discussions related to our Remote Power Patent during the term of the Agreement
and entered into a license agreement or similar agreement with us providing for
Net Consideration within the 12 month period following termination. In addition,
in the event of termination, Blank Rome will receive its pro-rata share of Net
Consideration based upon its hourly time charges with respect to parties against
whom Blank Rome commenced litigation (or defended) on our behalf. In the event
our agreement with Blank Rome is terminated, depending upon our financial
resources at the time, we may need to enter into a contingent fee agreement with
a new law firm in order to enforce and/or defend our Remote Power Patent and our
inability to secure such an arrangement on satisfactory terms and on a timely
basis may have a material adverse effect on us.

ANY LITIGATION TO PROTECT OUR INTELLECTUAL PROPERTY OR ANY THIRD PARTY
CLAIMS TO INVALIDATE OUR PATENTS COULD HAVE A MATERIAL ADVERSE EFFECT ON
OUR BUSINESS.

Our success depends on our ability to protect our intellectual property
rights. In August 2005, we commenced patent litigation against D-Link
Corporation and D-Link Systems, Incorporated for infringement of our Remote
Power Patent (See below Risk Factors - "Uncertainty of outcome of D-Link
Litigation"). In the future, it may be necessary for us to commence patent
litigation against additional third parties whom we believe require a license to
our patents. In addition, we may be subject to claims seeking to invalidate our
patents, which will likely be asserted by D-Link as a defense in the pending
litigation. These types of claims, with or without merit, may subject us to
costly litigation and diversion of management's focus. If we are unsuccessful in
enforcing and validating our patents and/or if third parties making claims
against us seeking to invalidate our patents are successful, they may be able to
obtain injunctive or other equitable relief, which effectively could block our
ability to license or otherwise capitalize on our proprietary technologies.
Successful litigation against us resulting in a determination that our patents
are invalid would have a material adverse effect on us.

WE FACE UNCERTAINTY AS TO THE OUTCOME OF LITIGATION WITH D-LINK.

On August 10, 2005, we commenced litigation against D-Link Corporation and
D-Link Systems, Incorporated in the United States District Court for the Eastern
District of Texas, Tyler division (Civil Action No. 6:05W291), for infringement
of our Remote Power Patent. Our complaint seeks, among other things, a judgment
that our Remote Power Patent is duly enforceable and has been infringed by the
defendants. We also seek a permanent injunction restraining defendants from
continued infringement, or active inducement of infringement by others, of our
Remote Power Patent. On February 27, 2006, the D-Link defendants filed answers
and asserted counterclaims. In their answers, the D-Link defendants asserted
that they did not infringe any valid claim of the Remote Power Patent, and
further asserted that our asserted patent claims are invalid and/or
unenforceable. In addition to these defenses, the D-Link defendants also
asserted counterclaims for, among other things, non-infringement, invalidity and
unenforceability of the Remote Power Patent. In the event that the Court
determines that our Remote Power Patent was not valid or enforceable, and/or
that the defendants did not infringe, any such determination would have a
material adverse effect on us.

MATERIAL LICENSING REVENUES FROM OUR REMOTE POWER PATENT MAY BE DEPENDENT
UPON THE APPLICABILITY OF THE IEEE STANDARD.

The Institute of Electrical and Electronic Engineers ("IEEE") is a
non-profit, technical professional association of more than 360,000 individual
members in approximately 175 countries. The Standards Association of the IEEE is
responsible for the creation of global industry standards for a broad range of
technology industries. In 1999, the IEEE formed a task force to facilitate the
adoption of a standardized methodology for the delivery of remote power over
Ethernet networks which would insure interoperability among vendors of switches
and terminal devices. In June 2003, the IEEE Standards Association approved the
802.3af Power Over Ethernet standard (the "Standard"), which covers technologies
deployed in delivering power over Ethernet cables including whether deployed in
switches or as standalone midspan hubs, both of which provide power to remote
devices including wireless access points, IP phones and network based cameras.
The technology is commonly referred to as Power Over Ethernet ("PoE"). We
believe our Remote Power Patent covers several of the key technologies covered
by the Standard. However, there is a risk that as a result of litigation a court
may determine otherwise and such a determination would have a material adverse
effect on our ability to enter into license agreements and achieve revenue and
profits from our Remote Power Patent.

WE FACE INTENSE COMPETITION AND WE MAY NOT BE ABLE TO SUCCESSFULLY COMPETE.

The telecommunications and data networking market is characterized by
intense competition and rapidly changing business conditions, customer
requirements and technologies. Our current and potential competitors have longer
operating histories, greater name recognition and possess substantially greater
financial, technical, marketing and other competitive resources than us.
Although we believe that we have rights to enforceable patents relating to
telecommunications and data networking, there can be no assurance that third
parties will not invalidate any or all of our patents. In addition, the
telecommunications and data networking industries may develop technologies that
may be more effective than our proprietary technologies or that render our
technologies less marketable or obsolete.

OUR MARKETS ARE SUBJECT TO RAPID TECHNOLOGICAL CHANGE AND OUR TECHNOLOGIES
FACE POTENTIAL TECHNOLOGY OBSOLESCENCE.

The telecommunications and data networking technology market including,
transmission of audio, video and data over computer and telephony networks and
the delivery of remote power over Ethernet markets, are characterized by rapid
technological changes, changing customer requirements, frequent new product
introductions and enhancements, and evolving industry standards. The
introduction of products embodying new technologies and the emergence of new
industry standards may render our technologies obsolete or less marketable. To
the extent we are able to achieve revenue in the future, such revenue will be
derived from licensing our technologies based on existing and evolving industry
standards.

DEPENDENCE UPON CEO AND CHAIRMAN.

Our success is largely dependent upon the personal efforts of Corey M.
Horowitz, our Chairman and Chief Executive Officer and Chairman of the Board of
Directors. On November 26, 2004, we entered into a two (2) year employment
agreement with Mr. Horowitz pursuant to which he continues to serve as our
Chairman and Chief Executive Officer. We do not maintain key man life insurance
on the life of Mr. Horowitz. The loss of the services of Mr. Horowitz would have
a material adverse effect on our business and prospects.

RISKS RELATED TO LOW PRICED STOCKS.

Our common stock currently trades on the OTC Bulletin Board under the
symbol NSSI. Since the trading price of our common stock is below $5.00 per
share, our common stock is considered a penny stock. SEC regulations generally
define a penny stock to be an equity security that is not listed on Nasdaq or a
national securities exchange and that has a market value of less than $5.00 per
share, subject to certain exceptions. SEC regulations require broker-dealers to
deliver to a purchaser of our common stock a disclosure schedule explaining the
penny stock market and the risks associated with it. Various sales practice
requirements are also imposed on broker-dealers who sell penny stocks to persons
other than established customers and accredited investors (generally
institutions). Broker-dealers must also provide the customer with current bid
and offer quotations for the penny stock, the compensation of the broker-dealer
and monthly account statements disclosing recent price information for the penny
stock held in the customer's account.

THE SIGNIFICANT NUMBER OF OPTIONS AND WARRANTS OUTSTANDING MAY ADVERSELY
AFFECT THE MARKET PRICE FOR OUR COMMON STOCK.

As of March 24, 2006, there are outstanding (i) options and warrants to
purchase an aggregate of 9,826,943 shares of our common stock at exercise prices
ranging from $.12 to $10.13, and (ii) 7,630 additional shares of our common
stock which may be issued in the future under our stock option plan. To the
extent that outstanding options and warrants are exercised, stockholder
percentage ownership will be diluted and any sales in the public market of the
common stock underlying such options may adversely affect prevailing market
prices for our common stock.

WE HAVE A SIGNIFICANT AMOUNT OF AUTHORIZED BUT UNISSUED PREFERRED STOCK,
WHICH MAY AFFECT THE LIKELIHOOD OF A CHANGE OF CONTROL IN OUR COMPANY.

Our Board of Directors has the authority, without further action by the
stockholders, to issue 10,000,000 shares of preferred stock on such terms and
with such rights, preferences and designations as our Board of Directors may
determine. Such terms may include restricting dividends on our common stock,
dilution of the voting power of our common stock or impairing the liquidation
rights of the holders of our common stock. Issuance of such preferred stock,
depending on the rights, preferences and designations thereof, may have the
effect of delaying, deterring or preventing a change in control. In addition,
certain "anti-takeover" provisions in Delaware law may restrict the ability of
our stockholders to authorize a merger, business combination or change of
control.

ITEM 2. DESCRIPTION OF PROPERTY

The Company currently leases office space in New York City at a cost of
$3,150 per month. The lease is for six months with automatic renewals unless
terminated upon 60 days notice.

ITEM 3. LEGAL PROCEEDINGS

POWERDSINE SETTLEMENT

On November 16, 2005, the Company entered into a Settlement Agreement with
PowerDsine, Inc. (NASDAQ: PDSN) and PowerDsine Ltd. (collectively, "PowerDsine")
which dismissed, with prejudice, patent litigation brought by PowerDsine against
the Company in March 2004 in the United States District Court for the Southern
District of New York that sought a declaratory judgment that our Remote Power
Patent (U.S. Patent No. 6,218,930) was invalid and not infringed by PowerDsine
and/or its customers.

Under the terms of the Settlement Agreement, the Company has agreed that it
will not initiate litigation against PowerDsine for its sale of Power over
Ethernet (PoE) integrated circuits. In addition, the Company has agreed that it
will not seek damages for infringement from customers that incorporate
PowerDsine integrated circuit products in PoE capable Ethernet switches
manufactured on or before April 30, 2006. PowerDsine has agreed that it will not
initiate, assist or cooperate in any legal action relating to the Remote Power
Patent. The Company has also agreed that it will not initiate litigation against
PowerDsine or its customers for infringement of the Remote Power Patent arising
from the manufacture and sale of PowerDsine Midspan products for three years
following the dismissal date. Following such three year period, the Company may
seek damages for infringement of the Remote Power Patent from PowerDsine or its
customers with respect to the purchase and sale of Midspan products beginning 90
days following the dismissal date of the litigation. The benefits afforded to
PowerDsine under the Settlement Agreement will cease in the event PowerDsine
institutes, assists or cooperates in any legal proceeding related to the Remote
Power Patent adverse to the Company (unless otherwise required by law to do so)
and PowerDsine customers will also forfeit benefits under the Settlement
Agreement if they engage in similar action.

No licenses to use the technologies covered by the Remote Power Patent were
granted to PowerDsine or its customers under the terms of the settlement. The
Settlement Agreement further provides that PowerDsine is obligated to provide
each of its customers with written notice of the settlement which notice shall
disclose that no license for the Remote Power Patent has been provided to
PowerDsine's customers and that in order to combine, modify or integrate any
PowerDsine product with or into any other device or software, PowerDsine's
customers may need to receive patent license(s) for such third party patents
which is the customer's responsibility. For the full text of the Company's
Settlement Agreement with PowerDsine, see Exhibit 10.1 of the Company's Current
Report on Form 8-K filed with the Securities and Exchange Commission on November
17, 2005.

D-LINK LITIGATION

On August 10, 2005, the Company commenced patent litigation against D-Link
Corporation and D-Link Systems, Incorporated in the United States District Court
for the Eastern District of Texas, Tyler division (Civil Action No. 6:05W291),
for infringement of the Company's Remote Power Patent. The Company's complaint
seeks, among other things, a judgment that its Remote Power Patent is
enforceable and has been infringed by the defendants. The Company also seeks a
permanent injunction restraining the defendants from continued infringement, or
active inducement of infringement by others, of the Company's Remote Power
Patent. On February 27, 2006, the D-Link defendants filed answers and asserted
counterclaims. In their answers, the D-Link defendants asserted that they did
not infringe any valid claim of the Remote Power Patent, and further asserted
that the asserted patent claims are invalid and/or unenforceable. In addition to
these defenses, the D-Link defendants also asserted counterclaims for, among
other things, non-infringement, invalidity and unenforceability of the Remote
Power Patent. On February 7, 2006, Judge Leonard Davis set a Markman hearing on
claim construction for September 19, 2006 and set a trial date of March 7, 2007.
In addition, at the proceeding, all of the outstanding motions to dismiss or
transfer the case made by the defendants were denied by Judge Davis. In March
2006, the D-Link defendants filed a writ of mandamus to overturn the Court's
decision to maintain the action in the Eastern District of Texas. The Company
intends to vigorously oppose such writ. In the event the Court determines that
its Remote Power Patent was not valid or enforceable, and/or that the defendants
did not infringe any such determination would have a material adverse effect on
the Company.

ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

None

PART II

ITEM 5. MARKET FOR COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND SMALL BUSINESS
ISSUER PURCHASES OF EQUITY SECURITIES

MARKET INFORMATION. The Company's Common Stock currently trades on OTC
Bulletin Board under the symbol NSSI. The following table sets forth, for the
periods indicated, the range of the high and low closing bid prices for the
Common Stock as reported. Such prices reflect inter-dealer quotations, without
retail mark-up, mark-down or commission and may not necessarily represent actual
transactions.

YEAR ENDED DECEMBER 31, 2005 HIGH LOW
---- ---
Fourth Quarter $1.44 $1.00
Third Quarter $1.55 $0.66
Second Quarter $1.12 $0.66
First Quarter $1.45 $0.92

YEAR ENDED DECEMBER 31, 2004 HIGH LOW
---- ---
Fourth Quarter $1.25 $0.33
Third Quarter $0.53 $0.05
Second Quarter $0.25 $0.05
First Quarter $0.39 $0.05

On March 24, 2006, the closing price for the Common Stock as reported on
the OTC Bulletin Board was $1.35 per share. The number of record holders of the
Company's Common Stock was 125 as of March 24, 2006.

DIVIDEND POLICY. The Company has never declared or paid any cash dividends
on its Common Stock and does not intend to declare or pay cash or other
dividends in the foreseeable future. The Board of Directors currently expects to
retain any future earnings, if any, for use in the operation and expansion of
its business. The declaration and payment of any future dividends will be at the
discretion of the Board of Directors and will depend upon a variety of factors,
including future earnings, if any, operations, capital requirements, the general
financial condition of the Company, the preferences of any series of Preferred
Stock, the general business conditions and future contractual restrictions on
payment of dividends, if any.

RECENT ISSUANCES OF UNREGISTERED SECURITIES. None.

ISSUER PURCHASES OF EQUITY SECURITIES. None.

EQUITY COMPENSATION PLAN INFORMATION

The following table summarizes share and exercise price information about
the Company's equity compensation plans as of December 31, 2005.

-----------------------------------------------------------------------------------------------------------------
NUMBER OF
SECURITIES TO BE NUMBER OF SECURITIES
ISSUED UPON WEIGHTED- REMAINING AVAILABLE
EXERCISE OF AVERAGE FOR FUTURE ISSUANCE
OUTSTANDING EXERCISE PRICE UNDER EQUITY
OPTIONS, OF OUTSTANDING COMPENSATION PLANS
WARRANTS AND OPTIONS, (EXCLUDING SECURITIES
RIGHTS WARRANTS AND REFLECTED IN COLUMN
(A) RIGHTS (A))
-----------------------------------------------------------------------------------------------------------------

Equity compensation plans approved by
security holders 3,992,370 $.93 7,630
-----------------------------------------------------------------------------------------------------------------
Equity compensation plans not
approved by security holders 0 -- 0
-----------------------------------------------------------------------------------------------------------------
Total 3,992,370 $.93 7,630
-----------------------------------------------------------------------------------------------------------------

ITEM 6. MANAGEMENT'S DISCUSSION AND ANALYSIS OR PLAN OF OPERATION

THE FOLLOWING DISCUSSION AND ANALYSIS SHOULD BE READ IN CONJUNCTION WITH
THE COMPANY'S FINANCIAL STATEMENTS, INCLUDING THE NOTES THERETO, INCLUDED
ELSEWHERE IN THIS FORM 10-KSB. EXCEPT FOR THE HISTORICAL INFORMATION CONTAINED
HEREIN, THIS DISCUSSION CONTAINS FORWARD-LOOKING STATEMENTS THAT INVOLVE RISKS
AND UNCERTAINTIES, INCLUDING, BUT NOT LIMITED TO, THOSE DISCUSSED IN THE SECTION
ABOVE ENTITLED "RISK FACTORS WHICH MAY AFFECT FUTURE RESULTS" IN ITEM 1 OF THIS
REPORT AS WELL AS THOSE RISKS DISCUSSED IN THIS SECTION AND ELSEWHERE IN THIS
REPORT. BECAUSE SUCH STATEMENTS INVOLVE RISKS AND UNCERTAINTIES, ACTUAL RESULTS
MAY DIFFER MATERIALLY FROM THOSE EXPRESSED OR IMPLIED BY SUCH FORWARD-LOOKING
STATEMENTS.

PLAN OF OPERATION

The principal business of the Company is the acquisition, development,
licensing and protection of its intellectual property. The Company presently
owns six patents covering various telecommunications and data networking
technologies (the "Patent Portfolio") including, among others, patents covering
the delivery of power over Ethernet for the purpose of remotely powering network
devices, and the transmission of audio, video and data over computer and
telephony networks. The Company's strategy is to pursue licensing and strategic
business alliances with companies in the industries that manufacture and sell
products that make use of the technologies underlying its patents as well as
with other users of the technology who benefit directly from the technology
including corporate, educational and governmental entities.

On November 18, 2003, the Company acquired the Patent Portfolio from Merlot
Communications, Inc., a broadband communications solutions provider. In February

2004, following its review of applicable markets, the Company initiated
licensing efforts relating to one of its patents (U.S. Patent No. 6,218,930)
covering the remote delivery of power over Ethernet cable (the "Remote Power
Patent"). The Company has focused, and will continue to focus, its efforts on
licensing its Remote Power Patent. As of the date of this report, the Company
has not entered into any license arrangement with respect to the Remote Power
Patent, although it is pursuing such arrangements with third parties. During the
next 12 months, management does not anticipate licensing efforts for its other
patents besides the Remote Power Patent.

To date the Company has incurred significant losses and at December 31,
2005 had an accumulated deficit of $(44,321,000). For the year ended December
31, 2005, the Company incurred a net loss of $(1,332,000) and incurred a net
loss of $(1,953,000) for the year ended December 31, 2004. Management
anticipates that the Company will continue to incur losses until it enters into
material license agreements with respect to its patented technologies. The
Company has not achieved any revenue from its technology licensing business. To
date the Company has not entered any licensing agreements with third parties
with respect to its Remote Power Patent or the Company's other patented
technologies. The Company's inability to consummate license agreements and
achieve revenue from its patented technologies would have a material adverse
effect on its operations and its ability to continue business.

The Company does not currently have any revenue from operations. The
success of the Company and its ability to generate revenue is largely dependent
on its ability to consummate licensing arrangements with third parties. In
November 2004, the Company entered into an agreement with ThinkFire Services
USA, Ltd. ("ThinkFire") pursuant to which ThinkFire has been granted the
exclusive worldwide rights to negotiate license agreements for the Remote Power
Patent with certain agreed-upon potential licensees. The Company has agreed to
pay ThinkFire a fee not to exceed 20% of the royalty payments received from
license agreements consummated by ThinkFire on its behalf.

The Company's success depends on its ability to protect its intellectual
property rights. In August 2005, the Company commenced patent litigation against
D-Link Corporation and D-Link Systems, Incorporated for infringement of its
Remote Power Patent (see Risk Factors - "We face uncertainty of outcome of
litigation with D-Link"). In the future, it may be necessary for the Company to
commence patent litigation against third parties whom it believes require a
license to its patents. In addition, the Company may be subject to third-party
claims seeking to invalidate its patents, which have been asserted as a defense
in the pending D-Link litigation (See Risk Factors - "We face uncertainty of the
outcome of litigation with D-Link") against the Company relating to the Remote
Power Patent as discussed below. These types of claims, with or without merit,
may subject the Company to costly litigation and diversion of management's
focus. In August 2005, the Company engaged Blank Rome LLP as litigation counsel
with respect to the Remote Power Patent on a contingency basis pursuant to which
Blank Rome is entitled to share in the proceeds of any successful enforcement of
the Remote Power Patent (See Risk Factors - "We are currently relying upon our
contingency fee agreement with Blank Rome"). If third parties making claims
against the Company seeking to invalidate its patent are successful, they may be
able to obtain injunctive or other equitable relief, which effectively could
block its ability to license or otherwise capitalize on its proprietary
technologies. Successful litigation

against the Company resulting in a determination that its patents are invalid
would have a material adverse effect on the Company.

The Company has financed its operations primarily from the sale of equity
securities. On December 21, 2004 and January 13, 2005, the Company completed a
private offering of its equity securities resulting in gross proceeds of
$2,685,000. In addition during the first quarter of 2006 the Company received
$1,493,726 of cash proceeds from the exercise of warrants issued in December
1999. The Company anticipates, based on currently proposed plans and
assumptions, relating to its operations, that its cash and cash equivalents of
approximately $2,034,005 as of March 31, 2006 will more likely than not be
sufficient to satisfy the Company's operations and capital requirements until
December 2007. There can be no assurance, however, that such funds will not be
expended prior thereto. In the event the Company's plans change, or its
assumptions change, or prove to be inaccurate (due to unanticipated expenses,
difficulties, delays or otherwise), the Company may have insufficient funds to
support its operations prior to December 2007. The Company's inability to
consummate licensing arrangements with respect to its Remote Power Patent and
generate revenues therefrom on a timely basis or obtain additional financing
when needed would have a material adverse effect on the Company, requiring it to
curtail or cease operations. In addition, any equity financing may involve
substantial dilution to the current stockholders of the Company.

CRITICAL ACCOUNTING POLICIES:

Patents:

The Company owns a patent portfolio that relates to various
telecommunications and data networking technologies. The Company capitalizes the
costs associated with acquisition, registration and maintenance of the patents
and amortizes these assets over their remaining useful lives on a straight-line
basis. Any further payments made to maintain or develop the patents would be
capitalized and amortized over the balance of the useful life for the patents.
On January 18, 2005, the Company and Merlot amended the Patent Purchase
Agreement pursuant to which the Company paid additional purchase price of
$500,000 to Merlot Communications, Inc. ("Merlot") in consideration for the
restructuring of future contingent payments to Merlot from the licensing or sale
of the Patents. Such $500,000 has been recorded as an expense in the
accompanying statement of operations.

Impairment of long-lived assets:

In accordance with Statement of Financial Accounting Standards ("SFAS") No.
144, "Accounting for the Impairment or Disposal of Long-Lived Assets", the
Company records impairment losses on long-lived assets used in operations or
expected to be disposed of when indicators of impairment exist and the cash
flows expected to be derived from those assets are less than carrying amounts of
those assets.

Use of estimates:

The preparation of financial statements in conformity with accounting
principles generally accepted in the United States of America requires
management to make

estimates and assumptions that affect the reported amounts of assets and
liabilities and disclosure of contingent assets and liabilities at the date of
the financial statements and the reported amounts of revenues and expenses
during the reporting period. Actual results could differ from those estimates.

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS:

See Note B on page F-7 through F-10 to the Financial Statements.

ITEM 7. FINANCIAL STATEMENTS

The financial statements required hereby are located on pages F-1 through
F-19 which follow Part III.

ITEM 8. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE.

None.

ITEM 8A. CONTROLS AND PROCEDURES.

(a) Evaluation of Disclosure Controls and Procedures.

The Company's Chief Executive Officer and Chief Financial Officer have
reviewed the disclosure controls and procedures of the Company as of the end of
the period covered by this Annual Report on Form 10-KSB. Based upon this review,
these officers concluded that, as of the end of the period covered by this
Annual Report on Form 10-KSB, the Company's disclosure controls and procedures
are effective to ensure that information required to be disclosed by the Company
in the reports it files or submits under the Securities Exchange Act of 1934 is
recorded, processed, summarized and reported, within the time periods specified
in applicable rules and forms and is accumulated and communicated to management,
including the Company's Chief Executive Officer and Chief Financial Officer, to
allow timely decisions regarding required disclosure.

(b) Changes in Internal Controls.

There were no significant changes in the Company's internal controls over
financial reporting that have materially affected, or are reasonably likely to
materially affect these controls during the last fiscal quarter included in this
report or from the end of the reporting period to the date of this Annual Report
on Form 10-KSB.

ITEM 8B. OTHER INFORMATION.

None.

PART III

ITEM 9. DIRECTORS AND EXECUTIVE OFFICERS; PROMOTERS AND CONTROL PERSON;
COMPLIANCE WITH SECTION 16(A) OF THE EXCHANGE ACT.

NAME AGE POSITION
---- --- --------
Corey M. Horowitz 51 Chairman and Chief Executive
Officer, Chairman of the Board of
Directors
David C. Kahn 54 Chief Financial Officer
Harry B. Schessel 41 Director
Robert Graifman 49 Director
Robert M. Pons 49 Director
Laurent Ohana 42 Director

COREY M. HOROWITZ became Chairman and Chief Executive Officer of the
Company in December 2003. Mr. Horowitz has also served as Chairman of the Board
of Directors of the Company since January 1996 and has been a member of the
Board of Directors since April 1994. In January 2003, Mr. Horowitz also became
Secretary of the Company. Mr. Horowitz is also President and sole shareholder of
CMH Capital Management Corp. ("CMH"), a New York investment advisory and
merchant banking firm, which he founded in September 1991. During the period
June 2001 through December 2003, CMH rendered financial advisory services to the
Company. From January 1986 to February 1991, Mr. Horowitz was a general partner
in charge of mergers and acquisitions at Plaza Securities Co., a New York
investment partnership.

DAVID C. KAHN, CPA, became Chief Financial Officer of the Company in
January 2004. Since December 1989, Mr. Kahn has provided accounting and tax
services on a consulting basis to private and public companies. He also serves
as a faculty member of Yeshiva University in New York, a position he has held
since August 2000.

HARRY B. SCHESSEL has been a director of the Company since July 2001. Since
July 2002, Mr. Schessel has been a real estate developer. From July 2001 until
July 2002, Mr. Schessel was employed at Kroll, Inc. ("Kroll") as the Global
Practice Leader for the Information Security Group. From June 2000 to July 2001,
Mr. Schessel advised security companies, including Kroll, in the areas of
strategy, operations, marketing and business development and also as a
consultant to investment banking firms and venture capital firms for purposes of
evaluating investments in the information security industry. From March 2000
until June 2000, Mr. Schessel was Vice President of Cybersafe, Inc., a security
software company. In June 1997, Mr. Schessel co-founded Centrax, Inc., a company
engaged in the development and marketing of intrusion

detection software, and was employed from June 1997 until its sale in March 1999
in various capacities, including Chief Operating Officer and Executive Vice
President.

ROBERT GRAIFMAN became a director of the Company in December 2003. Mr.
Graifman currently serves as Managing Member of Skyfarm Management, LLC, a New
Jersey based investment management company, and also as a Managing Member of
Federal Autocat Recycling, LLC, a resource reclamation and recycling Company.
From June 2000 to August 2003, Mr. Graifman also served as Chief Financial
Officer of Gilo Ventures, LLP, a California based venture capital firm focused
on emerging technology companies.

ROBERT M. PONS became a director of the Company in December 2003. Mr. Pons
currently serves as President and Chief Executive Officer of SmartServ Online,
Inc. (OTCBB:SSRV),a wireless applications service provider, a position he has
held since January 2004. From August 2003 until January 2004, Mr. Pons served as
Interim Chief Executive Officer of SmartServ Online, Inc. on a consulting basis.
From March 1999 to August 2003, he was President of FreedomPay, Inc., a wireless
device payment processing company. During the period January 1994 to March 1999,
Mr. Pons was President of Lifesafety Solutions, Inc., an enterprise software
company. Mr. Pons has over 20 years of management experience with
telecommunications companies including MCI, Inc., Sprint, Inc. and Geotek, Inc.

LAURENT OHANA became a director of the Company in September 2005. Mr. Ohana
is currently the Managing Partner of Parkview Ventures LLC ("Parkview"), a
company engaged in merchant banking activities, including making investments in
and providing strategic advisory services to information technology firms in the
US and internationally. From 1999 to 2002, Mr. Ohana was the CEO of Inlumen,
Inc., a company engaged in providing private label web-based financial portals
to financial institutions. From 1994 to 2004, Mr. Ohana was the managing partner
of New Media Capital LLC, a technology venture capital and advisory firm. From
1987 to 1993, Mr. Ohana was a corporate attorney at Fried Frank Harris Shriver &
Jacobson.

The sister of Corey M. Horowitz's wife is married to Robert Graifman.

KEY CONSULTANT

JONATHAN GREENE has served as a consultant to the Company since December
2004 providing technical and marketing analysis for the Company's Patent
Portfolio. Mr. Greene also serves as a member of the Company's Technical
Advisory Board. From August 2003 until December 2004, he served as a consultant
to Neartek, Inc., a storage management software company (August 2003 until
October 2003) and Kavado Inc., a security software company (November 2003 until
December 2004). From January 2003 until July 2003, Mr. Greene served as Director
of Product Management for FalconStor Software, Inc., a storage management
software company. From December 2001 through December 2002, Mr. Greene served as
Senior Vice President of Marketing and Business Development of the Company,
which at the time was engaged in the development, marketing and licensing of
security software. From December 1999 until September 2001, he served as Senior
Vice President of Marketing for Panacya Inc., a vendor of service management
software. Mr. Greene has also held positions at System Management ARTS (SMARTS),
Computer Associates, Cheyenne Software and Data General.

COMMITTEES OF THE BOARD OF DIRECTORS

Harry Schessel and Robert Graifman are the current members of the Audit
Committee and served on the Audit Committed during 2005. Mr. Graifman is the
audit committee financial expert. The Audit Committee meets with the Company's
independent auditors at least annually to review the scope and results of the
annual audit; reviews with the Company's independent auditors the Company's
quarterly reports on Form 10-QSB prior to filing, recommends to the Board the
independent auditors to be retained; and receives and considers the auditors'
comments as to internal controls, accounting staff and management performance
and procedures in connection with audit and financial controls. The Audit
Committee has adopted a written Audit Committee Charter. Robert Pons and Laurent
Ohana are current members of the Company's Compensation Committee. Mr. Pons
served as the sole member of the Compensation Committee until joined by Mr.
Ohana in September 2005. The Compensation Committee is responsible for
determining compensation for the executive officers of the Company, including
bonuses and benefits, and administration of the Company's compensation programs,
including the Company's Stock Option Plan.

LIMITATION ON LIABILITY AND INDEMNIFICATION MATTERS

The Company's Certificate of Incorporation limits the liability of
directors to the maximum extent permitted by Delaware law. Delaware law provides
that directors of a corporation will not be personally liable for monetary
damages for breach of their fiduciary duties as directors, except for liability
(i) for any breach of their duty of loyalty to the corporation or its
stockholders, (ii) for acts or omissions not in good faith or that involve
intentional misconduct or a knowing violation of law, (iii) for unlawful
payments of dividends or unlawful stock repurchases or redemptions as provided
in Section 174 of the Delaware General Corporation Law or (iv) for any
transaction from which the director derived an improper personal benefit. The
Company's Bylaws provide that the Company shall indemnify its directors,
officers, employees and agents to the fullest extent permitted by law. The
Company's Bylaws also permit the Company to secure insurance on behalf of any
officer, director, employee or other agent for any liability arising out of his
or her actions in such capacity. The Company currently maintains liability
insurance for its officers and directors. At present, there is no pending
material litigation or proceeding involving any director, officer, employee or
agent of the Company where indemnification will be required or permitted. The
Company is not aware of any threatened litigation or proceeding that might
result in a material claim for such indemnification.

TECHNICAL ADVISORY BOARD

In November 2004 the Company established a Technical Advisory Board to
assist the Company with its strategic business plan of maximizing the value of
its Patent Portfolio. Each member of the Technical Advisory Board received a
five (5) year option to purchase 17,500 shares (fully vested) of the Company's
common stock at an exercise price of $.54 per share.

The members of the Technical Advisory Board include:

GEORGE CONANT, CHAIRMAN OF MERLOT COMMUNICATIONS, INC., a broadband
communications solutions provider. Prior to joining Merlot Communications, Inc.,
Mr.

Conant co-founded Xyplex, Inc., a manufacturer of data communications equipment
and network management software, where he held the positions of Vice President
of Engineering, Vice President of Technology and Chief Technology Officer. Prior
to Xyplex, Mr. Conant was employed by Digital Equipment Corporation, where he
worked as a network architect. Mr. Conant received a BS and a Masters in
theoretical mathematics from the University of Michigan.

RON KEENAN, CHIEF TECHNOLOGY OFFICER OF MERLOT COMMUNICATIONS, INC. Mr.
Keenan is an expert on the convergence of telecommunications and data who, prior
to co-founding Merlot, founded QFR USA Corporation, a high-tech firm engaged in
developing custom ASICs for advanced and cost-effective communications systems.
He had previously founded two other development firms. He also served as
advanced engineering project director at TIE/Communications, Inc., where he
developed the TIE 612 Electronic Key System, the first "skinny wire" telephone
system and one of the largest selling key systems in history. Mr. Keenan
received his BS in Electrical Engineering from the Milwaukee School of
Engineering and has more than 20 years experience in advanced analog and digital
design techniques.

ANDREW MASLOW, DIRECTOR OF INDUSTRIAL AFFAIRS, MEMORIAL SLOAN-KETTERING
CANCER CENTER. Mr. Maslow heads the intellectual property activities of
Sloan-Kettering which includes licensing activities of the Center's technology
and management of its patent portfolio. Annual licensing revenue exceeds $60
million. Prior to joining Sloan-Kettering, Mr. Maslow was Associate Director of
the Office of Science and Technology of Columbia University where he was
responsible for the development, patenting and licensing of inventions
originating at the university. Mr. Maslow is a Registered Patent Attorney.

JONATHAN GREENE also serves as a member of the Technical Advisory Board
(see page 21 hereof for a description of Mr. Greene's background).

SECTION 16(A) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

Section 16(a) of the Exchange Act requires the Company's executive
officers, directors, and persons who own more than 10% of the Company's
outstanding Common Stock to file initial reports of ownership and changes in
ownership with the Securities and Exchange Commission. Officers, directors and
greater than 10% stockholders are required by Commission regulations to furnish
the Company with copies of all Section 16(a) forms they file. The Company
believes that its executive officers, directors, and greater than 10%
stockholders complied with all required filings during the year ended December
31, 2005.

CODE OF ETHICS

The Board of Directors has adopted a Code of Ethics that applies to the
principal executive officers, principal financial officer, principal accounting
officer or controller, or persons performing similar functions. The Code of
Ethics was filed as Exhibit 14 of the Company's Annual Report on Form 10-KSB for
the year ended December 31, 2003.

ITEM 10. EXECUTIVE COMPENSATION

The following table summarizes compensation, for the fiscal years
indicated, awarded to, earned by or paid to the Company's Chief Executive
Officer ("CEO") and to each of its executive officers (collectively, the "Named
Executive Officers") who received annual salary and bonus in excess of $100,000
for the year ended December 31, 2005 for services rendered in all capacities to
the Company.

SUMMARY COMPENSATION TABLE

ANNUAL COMPENSATION LONG TERM COMPENSATION AWARDS
------------------------------------------- --------------------------------
SHARES
YEAR ENDED OTHER ANNUAL UNDERLYING ALL OTHER ANNUAL
NAME AND PRINCIPAL POSITION DECEMBER 31 SALARY ($) BONUS ($) COMPENSATION(1) OPTIONS(#) COMPENSATION(1)
--------------------------- ----------- ---------- --------- --------------- ---------- ---------------

Corey M. Horowitz 2005 $252,083 $100,000(2) -- 1,195,361 --
Chairman and Chief 2004 $218,970 -- -- 1,500,000 --
Executive Officer 2003 $210,000(3) -- 1,600,000 --

-------------------

(1) The Company has concluded that the aggregate amount of perquisites and
other personal benefits paid to Mr. Horowitz did not exceed the lesser
of ten percent (10%) of such individual's annual salary and bonus for
each fiscal year indicated or $50,000.

(2) The bonus paid to Mr. Horowitz was for 2005 and was paid in February
2006.

(3) On December 22, 2003, Mr. Horowitz became Chairman and Chief Executive
Officer of the Company. CMH Capital Management Corp. ("CMH"), the sole
stockholder and officer of which is Mr. Horowitz, rendered financial
consulting services from June 2001 until December 2003 and was paid
consulting fees of $205,398 for 2003 which is included in Mr. Horowitz's
salary. Mr. Horowitz's salary for 2003 includes (i) his salary for
December 2003 as Chairman and Chief Executive Officer and (ii)
consulting fees received by CMH for the period January 2003 until
December 2003.

EMPLOYMENT CONTRACTS, TERMINATION OF EMPLOYMENT AND CHANGE-IN-CONTROL
ARRANGEMENTS

On November 26, 2004, the Company entered into an Employment Agreement with
Corey M. Horowitz pursuant to which Mr. Horowitz continued to serve as Chairman
and Chief Executive Officer of the Company for a two year term at an annual base
salary of $250,000 for the first year and $275,000 for the second year. Mr.
Horowitz was also issued options to purchase an aggregate of 1,500,000 shares of
the Company's common stock consisting of (i) a ten (10) year option to purchase
1,100,000 shares at an exercise price of $.25 per share which fully vested on
the date of grant and (ii) a five year option to purchase 400,000 at an exercise
price of $.68 per share which vested 50% on the date of grant and 50% one year
thereafter, subject to acceleration

upon a change of control. In addition, under the terms of his Employment
Agreement, Mr. Horowitz shall receive bonus compensation in an amount equal to
5% of Network-1's royalties or other payments received from licensing its
patents. Mr. Horowitz shall also receive bonus compensation equal to 5% of the
gross proceeds from (i) the sale of any of the Company's patents or (ii) the
merger of the Company with or into another corporation or entity. The
aforementioned bonus compensation shall continue to be paid to Mr. Horowitz for
a period of five (5) years following the term of the Employment Agreement with
respect to licenses entered into by the Company with third parties during the
term of the Employment Agreement, provided, that, Mr. Horowitz's employment has
not been terminated by the Company "For Cause" (as defined) or terminated by Mr.
Horowitz without "Good Reason" (as defined). In the event that Mr. Horowitz's
employment is terminated by the Company "Other Than For Cause" (as defined) or
by Mr. Horowitz for "Good Reason" (as defined), Mr. Horowitz shall be entitled
to a severance of 12 months base salary.

In connection with his Employment Agreement, Mr. Horowitz has agreed not to
compete with the Company as follows: (i) during the term of the agreement and
for a period of 12 months thereafter if his employment is terminated other than
for cause (as defined) provided he is paid his 12 month base salary severance
amount and (ii) for a period of two years from the termination date, if
terminated "For Cause" or "Without Good Reason." In accordance with his
employment agreement (as amended on March 29, 2006), Mr. Horowitz also has
certain anti-dilution rights which provide that if at any time during the period
ended November 24, 2006, in the event that the Company completes an offering of
its common stock or any securities convertible or exercisable into common stock
(exclusive of securities issued upon exercise of outstanding options, warrants
or other convertible securities), Mr. Horowitz shall receive from the Company,
at the same price as the securities issued in the financing, such number of
additional options to purchase Common Stock so that he maintains the same
derivative ownership percentage (20.11%) of the Company based upon options and
warrants owned by Mr. Horowitz and exclusive of his ownership of shares of
Common Stock as he owned as of the time of execution of his employment agreement
(November 2004); provided, that, the aforementioned anti-dilution protection
shall be afforded to Mr. Horowitz up to a maximum future Company financing of
$2.5 million. In March 2005, Mr. Horowitz was issued a seven (7) year option to
purchase 1,195,361 shares of Common Stock, at an exercise price of $1.18 per
share, pursuant to the anti-dilution provisions of his Employment Agreement as a
result of a private offering of the Company's securities completed in December
2004 and January 2005.

On August 4, 2005, the Company and David C. Kahn entered into an agreement
pursuant to which Mr. Kahn agreed to continue to serve as Chief Financial
Officer of the Company through December 31, 2006. In consideration for his
services, Mr. Kahn will be compensated at the rate of $6,000 per month for the
period through December 31, 2005 and $6,300 per month for the year ended
December 31, 2006. Mr. Kahn was also issued a ten (10) year option (the
"Option") to purchase 75,000 shares of the Company's common stock at an exercise
price of $.80 per share. The option vested 30,000 shares on the date of grant
and the balance of the shares (45,000) will vest on a quarterly basis in equal
amounts of 7,500 shares beginning September 30, 2005 through December 31, 2006.
Upon a "Change in Control" (as defined) all of the unvested shares underlying
the Option shall become 100% vested and immediately exercisable. The agreement
further provides that the Company may terminate the

agreement at any time for any reason. In the event Mr. Kahn's services are
terminated without "Good Cause" (as defined), he will be entitled to accelerated
vesting of all unvested shares underlying the Option and the lesser of six
months base monthly compensation or the remaining balance of the monthly
compensation payable through December 31, 2006.

DIRECTOR COMPENSATION

The Company has compensated each director, who is not an employee of the
Company, by granting to each outside director (upon joining the Board) stock
options to purchase 50,000 shares of Common Stock, at an exercise price equal to
the closing price of the Common Stock on the date of grant, with the options
vesting over a one year period in equal quarterly amounts. In addition, each
non-employee director receives an option grant to purchase 7,500 shares of
Common Stock for each year of service after the first year as a member of the
Board of Directors. Such options vest over a one year period in equal quarterly
amounts. In addition to the aforementioned option grants, directors may be
granted additional options at the discretion of the Board of Directors and the
Compensation Committee.

OPTION GRANTS IN 2005

The following stock options were granted to the Named Executive Officers
during the year ended December 31, 2005:

NUMBER OF % OF TOTAL
SHARES OPTIONS GRANTED EXERCISE
UNDERLYING TO EMPLOYEES PRICE PER EXPIRATION
OPTIONS GRANTED IN 2005(1) SHARE (2) DATE
--------------- ---------- --------- ----

Corey M. Horowitz 1,195,361(2) 94% $1.18 3/16/2012

-------------------

(1) The number of options granted to employees during the year ended
December 31, 2005 used to compute this percentage is based on aggregate
stock options of 1,270,361 shares including an option to purchase 75,000
shares granted to the Company's Chief Financial Officer.

(2) The exercise price ($1.18 per share) of the options granted to Mr.
Horowitz was based upon the per share price of shares and warrants
issued in the Company's private offering in December 2004 and January
2005 in accordance with the anti-dilution provisions of his employment
agreement. The exercise price per share of the options ($1.18) exceeded
the fair market value of the shares on the date of grant (March 17,
2005) which was $1.13.

FISCAL YEAR-END OPTION VALUES

No options were exercised by the Named Executive Officers during the year
ended December 31, 2005. The following table sets forth information relating to
the fiscal year-end value of unexercised options held by the Named Executive
Officers on an aggregated basis:

Number of Securities
Underlying Value of Unexercised
Unexercised Options In-the-Money Options
at 12/31/2005 at Fiscal Year-End ($)(1)
------------------------------- -------------------------------
Name Exercisable Unexercisable Exercisable Unexercisable
---- ----------- ------------- ----------- -------------

Corey M. Horowitz 5,523,081(2) 210,625 $2,599,600 $180,000

-------------------

(1) Options are "in-the-money" if the market price of the Common Stock on
December 30, 2005 ($1.13) exceeds the exercise price of such options.
The value of such options is calculated by determining the difference
between the aggregate market price of the Common Stock underlying the
options on December 30, 2005 (last trading day of the year) and the
aggregate exercise price of such options.

(2) Includes options and warrants to purchase 1,300,000 shares of Common
Stock held by CMH Capital Management Corp., an entity in which Mr.
Horowitz is the sole owner and officer.

ITEM 11. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND
RELATED STOCKHOLDER MATTERS

The following table sets forth information regarding the beneficial
ownership of the Company's shares of Common Stock as of March 24, 2006 (i) each
person known by the Company to be the beneficial owner of more than 5% of the
outstanding shares of Common Stock, (ii) each director and nominee, (iii) each
of the executive officers of the Company, and (iv) all executive officers and
directors of the Company as a group.

NAME AND ADDRESS(1) OF NUMBER OF SHARES PERCENTAGE OF SHARES
BENEFICIAL OWNER BENEFICIALLY OWNED BENEFICIALLY OWNED(2)
---------------- ------------------ ---------------------

Corey M. Horowitz(3) 8,884,226 36.3%

CMH Capital Management Corp. (4) 4,167,800 20.5%

Barry Rubenstein(5) 3,743,215 19.6%

Irwin Lieber (6) 2,048,338 10.7%

Barry Fingerhut (7) 2,008,598 10.5%

Emigrant Capital Corporation (8)
Paul Milstein Revocable 1998 Trust
New York Private Bank & Trust Corporation
Emigrant Bancorp. Inc.
Emigrant Savings Bank 1,312,500 6.7%

Wheatley Partners II, L.P. (9) 1,280,207 6.7%

NAME AND ADDRESS(1) OF NUMBER OF SHARES PERCENTAGE OF SHARES
BENEFICIAL OWNER BENEFICIALLY OWNED BENEFICIALLY OWNED(2)
---------------- ------------------ ---------------------

Singer Fund Management, LLC(10) 1,063,480 5.5%
Singer Opportunity Fund, L.P.
Singer Fund, L.P.

Robert Graifman(11) 283,450 1.5%

Harry B. Schessel (12) 128,750 *

David C. Kahn(13) 102,500 *

Laurent Ohana(14) 75,000 *

Robert Pons(15) 50,000 *

All officers and directors as a group 9,523,926 38.1%
(6 Persons)

-------------------
* Less than 1%.

(1) Except as otherwise indicated, the address for each beneficial owner is
c/o Network-1 Security Solutions, Inc., 445 Park Avenue, Suite 1028, New
York, New York 10022.

(2) Unless otherwise indicated, the Company believes that all persons named
in the above table have sole voting and investment power with respect to
all shares of Common Stock beneficially owned by them. A person is
deemed to be the beneficial owner of securities that can be acquired by
such person within 60 days from the date hereof upon the exercise of
options, warrants or convertible securities. Each beneficial owner's
percentage ownership is determined by assuming that options, warrants
and convertible securities held by such person (but not those held by
any other person) and which are exercisable or convertible within 60
days have been exercised and converted. Assumes a base of 19,049,724
shares of Common Stock outstanding.

(3) Includes (i) 418,803 shares of Common Stock held by Mr. Horowitz, (ii)
4,137,861 shares of Common Stock subject to currently exercisable stock
options held by Mr. Horowitz, (iii) 2,867,800 shares of Common Stock
held by CMH Capital Management Corp. ("CMH"), an entity solely owned by
Mr. Horowitz, (iv) 550,000 shares of Common Stock subject to currently
exercisable warrants held by CMH, (v) 750,000 shares of Common Stock
subject to currently exercisable options held by CMH, (vi) 67,471 shares
of Common Stock owned by Donna Slavitt, the wife of Mr. Horowitz, (vii)
90,000 shares of Common Stock held by two trusts and a custodian account
for the benefit of Mr. Horowitz's three children and (viii) 2,291 shares
of Common Stock held by Horowitz Partners, a general partnership of
which Mr. Horowitz is a partner. Does not include options to purchase
210,625 shares of Common Stock which are not currently exercisable. The
address of CMH Capital Management Corp. is 445 Park Avenue, New York,
New York 10022.

(4) Includes (i) 2,867,800 shares of Common Stock, (ii) 550,000 shares of
Common Stock subject to currently exercisable warrants and (iii) 750,000
shares of Common Stock subject to currently exercisable stock options.
Corey M. Horowitz, by virtue of being the sole officer and shareholder
of CMH, has the sole power to vote and dispose of the shares of common
stock owned by CMH.

(5) Includes (i) 1,280,207 shares of Common Stock held by Wheatley Partners
II, L.P., (ii) 194,280 shares of Common Stock held by Wheatley Partners,
L.P., (iii) 16,868 shares of Common Stock held by Wheatley Foreign
Partners, L.P., (iv) 150,012 shares of Common Stock held by Mr.
Rubenstein, (v) 47,500 shares of common stock subject to

currently exercisable stock options held by Mr. Rubenstein, and (vi)
829,226, 619,983, 309,316, 294,810 and 1,049 shares of Common Stock held
by Woodland Venture Fund, Seneca Ventures, Woodland Partners, Brookwood
Partners, L.P. and Marilyn Rubenstein, respectively. Does not include
options to purchase 11,875 shares of Common Stock held by Mr. Rubenstein
which are not currently exercisable. The aforementioned beneficial
ownership by Mr. Rubenstein is based upon Amendment No. 6 to Schedule
13D jointly filed by Mr. Rubenstein and related parties with the
Securities and Exchange Commission on January 3, 2005 and Form 4s filed
by Mr. Rubenstein with the Securities and Exchange Commission on
December 21, 2004 and February 17, 2005. Barry Rubenstein is a general
partner of Wheatley Partners II, L.P. and a member of the general
partner of each of Wheatley Partners, L.P. and Wheatley Foreign
Partners, L.P. Barry Rubenstein and Woodland Services Corp. are the
general partners of Woodland Venture Fund and Seneca Ventures. Barry
Rubenstein is the President and sole director of Woodland Services Corp.
Marilyn Rubenstein is the wife of Barry Rubenstein. Mr. Rubenstein
disclaims beneficial ownership of the shares of Common Stock held by
Wheatley Partners II, L.P., Wheatley Partners, L.P. and Wheatley Foreign
Partners, L.P., except to the extent of his equity interest therein. The
address of Barry Rubenstein is 68 Wheatley Road, Brookville, New York
11545. The address of Wheatley Partners II, L.P. and Wheatley Partners,
L.P. is 60 Cuttermill Road, Great Neck, New York 11021. The address of
Wheatley Foreign Partners, L.P. is c/o Fiduciary Trust, One Capital
Place, Snedden Road, P.O. Box 162, Grand Cayman, British West Indies.
The address for Woodland Venture Fund, Seneca Ventures, Brookwood
Partners, L.P. and Woodland Partners is c/o Barry Rubenstein, 68
Wheatley Road, Brookville, New York 11545.

(6) Includes (i) 1,280,207 shares of Common Stock held by Wheatley Partners
II, L.P., (ii) 194,280 shares of Common Stock held by Wheatley Partners,
L.P., (iii) 16,868 shares of Common Stock held by Wheatley Foreign
Partners, L.P., (iv) 509,483 shares of Common Stock owned by Mr. Lieber,
and (v) 47,500 shares of Common Stock subject to currently exercisable
stock options owned by Mr. Lieber. Does not include options to purchase
11,875 shares of Common Stock owned by Mr. Lieber which are not
currently exercisable. The aforementioned beneficial ownership by Mr.
Lieber is based upon Amendment No. 6 to Schedule 13D jointly filed by
Mr. Lieber and related parties with Securities and Exchange Commission
on January 3, 2005 and Form 4s filed with the Securities and Exchange
Commission on December 21, 2004 and February 17, 2005. Mr. Lieber
disclaims beneficial ownership of the shares of Common Stock held by
Wheatley Partners II, L.P., Wheatley Partners, L.P. and Wheatley Foreign
Partners, L.P., except to the extent of his equity interest therein. The
address of Irwin Lieber is c/o Wheatley Partners, II, L.P., 80
Cuttermill Road, Great Neck, New York 11021.

(7) Includes (i) 1,280,207 shares of Common Stock held by Wheatley Partners,
II, L.P., (ii) 194,280 shares of Common Stock held by Wheatley Partners,
L.P., (iii) 16,868 shares of Common Stock held by Wheatley Foreign
Partners, L.P., and (iv) 517,243 shares of Common Stock owned by Mr.
Fingerhut. Mr. Fingerhut disclaims beneficial ownership of the shares of
Common Stock held by Wheatley Partners II, L.P., Wheatley Partners, L.P.
and Wheatley Foreign Partners, L.P., except to the extent of his equity
interest therein. The address of Barry Fingerhut is c/o Wheatley
Partner, II, L.P., 80 Cuttermill Road, Great Neck, New York 11021.

(8) Includes (i) 750,000 shares of Common Stock and (ii) 562,500 shares of
Common Stock subject to currently exercisable warrants held by Emigrant
Capital Corporation ("Emigrant Capital"). Emigrant Capital is a wholly
owned subsidiary of Emigrant Savings Bank ("ESB"), which is a
wholly-owned subsidiary of Emigrant Bancorp, Inc ("EBI"). EBI is a
wholly-owned subsidiary of New York Private Bank & Trust Corporation
("NYPBTC"). The Paul Milstein Revocable 1998 Trust (the "Trust") owns
100% of the

voting stock of NYPBTC. ESB, EBI, NYPBTC and the Trust each may be
deemed to be the beneficial owner of the shares of Common Stock and
warrants held by Emigrant Capital. The aforementioned is based upon a
Schedule 13G/A filed jointly by Emigrant Capital, ESB, EBI, NYPBTC, the
Trust and others with the Securities and Exchange Commission on January
12, 2005. Howard Millstein, by virtue of being an officer of New York
Private Bank and Trust Corporation and trustee of the Paul Milstein
Revocable 1998 Trust, both indirect owners of Emigrant Capital
Corporation, may be deemed to have sole power to vote and dispose of the
securities owned by Emigrant Capital Corporation. The principal business
address of Emigrant Capital, ESB, EBI, NYPBTC and the Trust is 6 East
43rd Street, New York, New York 10017.

(9) Includes 1,280,207 shares of Common Stock. Does not include (i)
2,415,544, 720,631, 728,391, 139,393 and 140,945 shares of Common Stock
beneficially owned by Barry Rubenstein, Irwin Lieber, Barry Fingerhut,
Jonathan Lieber and Seth Lieber, respectively, each of whom is a general
partner of Wheatley Partners II, L.P. and (ii) an aggregate of 95,000
shares of Common Stock subject to currently exercisable options owned by
Barry Rubenstein (47,500 shares) and Irwin Lieber (47,500 shares). Each
of Messrs. Rubenstein, I. Lieber, Fingerhut, J. Lieber and S. Lieber
disclaims beneficial ownership of the securities held by Wheatley
Partners II, L.P., except to the extent of their equity interest
therein. Jonathan Lieber and Seth Lieber each beneficially own less than
1% of the outstanding Common Stock of the Company exclusive of shares
beneficially owned by Wheatley Partners II, L.P., Wheatley Partners,
L.P. and Wheatley Foreign Partners, L.P. and as such have not been
included in the beneficial ownership table. Barry Rubenstein, Irwin
Lieber, Barry Fingerhut, Seth Lieber and Jonathan Lieber, by virtue of
each being a general partner of Wheatley Partners II, L.P., may be
deemed to have shared power to vote and dispose of the shares of common
stock owned by Wheatley Partners II, L.P. Wheatley Partners II, L.P.'s
business address is 80 Cuttermill Road, Great Neck, New York 11021.

(10) Includes (i) 405,000 shares of Common Stock and 187,500 shares of Common
Stock subject to currently exercisable warrants owned by Singer Fund,
L.P., (ii) 282,980 shares of Common Stock and 187,500 shares of Common
Stock subject to currently exercisable warrants owned by Singer Fund,
L.P., and (iii) 500 shares of Common Stock owned by Singer Congressional
Fund, L.P. Singer Fund Management, LLC makes all investment and voting
decisions on behalf of Singer Opportunity Fund, L.P., Singer Fund, L.P.
and Singer Congressional Fund, L.P. The aforementioned is based on a
Schedule 13G filed jointly by Singer Fund Management, LLC, Singer
Opportunity Fund, L.P., Singer Fund, L.P. and Singer Congressional Fund,
L.P. with the Securities and Exchange Commission on March 23, 2005. Eric
Singer, by virtue of being managing member of Singer Fund, L.P. and
Singer Fund Management, LLC, has sole power to vote and dispose of the
securities owned by Singer Fund, L.P. The principal business address of
Singer Fund Management, LLC is 650 Fifth Avenue, New York, New York
10019.

(11) Includes (i) 154,700 shares of Common Stock, (ii) 75,000 shares subject
to currently exercisable warrants and (iii) 53,750 shares subject to
currently exercisable stock options issued to Mr. Graifman pursuant to
the Stock Option Plan. Does not include options to purchase 11,250
shares of Common Stock which are not currently exercisable.

(12) Includes 128,750 shares of Common Stock subject to currently exercisable
stock options issued to Mr. Schessel pursuant to the Stock Option Plan.
Does not include options to purchase 11,250 shares of Common Stock which
are not currently exercisable.

(13) Includes 102,500 shares of Common Stock subject to currently exercisable
stock options issued to Mr. Kahn pursuant to the Stock Option Plan. Does
not include options to purchase 22,500 shares of Common Stock which are
not currently exercisable.

(14) Includes 75,000 shares subject to currently exercisable options and
warrants issued to Mr. Ohana. Does not include options to purchase
25,000 shares of Common Stock which are not currently exercisable.

(15) Includes 50,000 shares subject to currently exercisable stock options
issued to Mr. Pons pursuant to the Stock Option Plan.

The Equity Compensation Plan information presented in Item 5 of this Annual
Report is incorporated herein in its entirety.

ITEM 12. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

In November 2004, the Company entered into a two year employment agreement
with Corey M. Horowitz pursuant to which he continues to serve as Chairman and
Chief Executive Officer at an annual base salary of $250,000 for the first year
and $275,000 for the second year. Pursuant to the Employment Agreement the
Company issued options to Mr. Horowitz to purchase 1,500,000 shares of common
stock. (See Item 10. "Executive Compensation - Employment Contracts, Termination
of Employment and Change-In-Control Arrangements" at page 25 hereof. In February
2006, Mr. Horowitz received a bonus of $100,000 from the Company for 2005. On
March 29, 2006, the Company entered into an amendment to its Employment
Agreement with Mr. Horowitz pursuant to which the anti-dilution protection
offered Mr. Horowitz was extended until November 26, 2006. The amendment
provides that if the Company completes an equity financing (including securities
exercisable or convertible into equity) at anytime prior to November 26, 2006,
Mr. Horowitz shall be issued options by the Company (at an exercise price equal
to the same price as the securities issued in the financing) to purchase such
number shares of common stock so that he maintains the same derivative ownership
percentage (as defined in the Employment Agreement) that he owned as of November
2004 (at the time of execution of the employment agreement); provided; that,
such anti-dilution protection shall be provided to Mr. Horowitz up to a maximum
future Company financing of $2.5 million.

On November 18, 2003, the Company entered into an agreement (the
"Agreement") with Merlot Communications, Inc. ("Merlot"), a broadband
communications solutions provider, pursuant to which the Company acquired six
patents (the "Patent Portfolio") relating to various telecommunications and data
networking technologies from Merlot, for a purchase price of $100,000 and
contingent future payments equal to 20% of the net income (as defined in the
Agreement) of the Company from the sale or licensing of the Patents after the
Company achieves $4.0 million of net income for each patent comprising the
Patent Portfolio ("Future Contingent Payments"). On January 18, 2005, the
Company and Merlot entered into an amendment to the Agreement (the "Amendment")
pursuant to which the Company paid $500,000 to Merlot in consideration for the
restructuring of the Future Contingent Payments to Merlot from the licensing or
sale of the Patent Portfolio. The Amendment provides for future contingent
payments by the Company to Merlot of $1.0 million upon achievement of $25
million of Net Royalties (as defined), an additional $1.0 million upon
achievement of $50 million of Net Royalties and an additional $500,000 upon
achievement of $62.5 million of Net

Royalties from licensing or sale of the patents acquired from Merlot. Wheatley
Partners, II, L.P. and its affiliates and related parties, who are principal
stockholders of the Company, owned a majority of the outstanding voting stock of
Merlot at the time of the Agreement and the Amendment and Barry Rubenstein and
Irwin Lieber, principal stockholders of the Company and general partners of
Wheatley Parties II, L.P., were also directors of Merlot at the time of the
Agreement and Amended Agreement but abstained from voting on approval of such
agreements.

On April 13, 2004, the Company as part of a recapitalization entered into
an exchange agreement with each of its outstanding holders of preferred stock
pursuant to which such holders exchanged an aggregate of 2,714,562 shares of
Preferred Stock (231,054 shares of Series D Preferred Stock and 2,483,508 shares
of Series E Preferred Stock) for an aggregate of 6,698,118 shares of Common
Stock. Holders of preferred stock received 1.25 shares of Common Stock for each
share of Common Stock such holders would have received based upon the conversion
rate of their Preferred Stock. The holders of preferred stock participating in
the exchange included among the 27 holders, CMH (1,084,935 shares of Series E
Preferred Stock), Donna Slavitt, the wife of Corey M. Horowitz (35,377 shares of
Series E Preferred Stock), Barry Rubenstein, his wife and affiliated entities
exclusive of Wheatley entities (471,686 shares of Series E Preferred Stock and
139,747 shares of Series D Preferred Stock), Wheatley Partners II, L.P. (94,339
shares of Series E Preferred Stock), Wheatley Partners, L.P. (86,792 shares of
Series E Preferred Stock) and Wheatley Foreign Partners, L.P. (7,547 shares of
Series E Preferred Stock), Irwin Lieber (165,094 shares of Series E Preferred
Stock and 34,689 shares of Series D Preferred Stock) and Barry Fingerhut
(165,094 shares of Series D Preferred Stock and 34,689 shares of Series D
Preferred Stock).

On December 21, 2004, the Company extended the exercise period for
outstanding warrants to purchase 1,352,152 shares of Common Stock originally
issued in connection with a private offering completed by the Company in
December 1999 (the "1999 Warrants") for an additional period of one year or
until December 22, 2005. On December 12, 2005, the exercise period of the 1999
Warrants was further extended until March 22, 2006. Corey M. Horowitz was among
the investors that participated in the December 1999 private offering and owned
warrants to purchase 85,220 shares as part of the 1999 Warrants.

On December 21, 2004 and January 13, 2005, the Company completed a private
offering of an aggregate of 2,685,000 shares of common stock and three year
warrants to purchase 2,013,750 shares of common stock for an aggregate purchase
price of $2,685,000 paid by investors (the "Private Offering"). As part of its
agreement with the investors in the Private Offering, the Company filed a
registration statement with the Securities and Exchange Commission to register
for resale the Common Stock (including the shares issuable upon exercise of the
warrants) sold in the Private Offering and such Registration Statement was
declared effective on December 22, 2005. Investors in the Private Offering
included Robert Graifman (100,000 shares of Common Stock and warrants to
purchase 75,000 shares of Common Stock), a director of the Company. As a result
of completion of the Private Offering, in accordance with the anti-dilution
provisions of the Employment Agreement, dated November 26, 2004, between Corey
M. Horowitz and the Company, in March 2005, Mr. Horowitz was issued a seven

year option to purchase 1,195,361 shares of Common Stock at an exercise price of
$1.18 per share.

ITEM 13. EXHIBITS LIST

(a) Exhibits

10.2 Patents Purchase, Assignment and License Agreement, dated November
18, 2003, between the Company and Merlot Communications, Inc.
Previously filed as Exhibit 10.10 to the Company's Current Report
on Form 8-K filed December 3, 2003 and incorporated herein by
reference.

10.3 Letter Agreement, dated December 21, 2003, between the Company and
Corey M. Horowitz, including exhibits. Previously filed as Exhibit
10.3 to the Company's Annual Report on Form 10-KSB filed April 14,
2004 and incorporated herein by reference.

10.4 Letter Agreement dated January 22, 2004, between the Company and
David Kahn. Previously filed as Exhibit 10.4 to the Company's
Annual Report on Form 10-KSB filed April 14, 2004 and incorporated
herein by reference.

10.5 Exchange Agreement, dated April 13, 2004, between the Company and
its Preferred Stockholders. Previously filed as Exhibit 10.5 to the
Company's Annual Report on Form 10-KSB filed April 14, 2004 and
incorporated herein by reference.

10.6 Employment Agreement, dated November 26, 2004, between the Company
and Corey M. Horowitz. Previously filed as Exhibit 10.1 to the
Company's Current Report on Form 8-K filed December 1, 2004 and
incorporated herein by reference.

10.7 Master Services Agreement, dated November 30, 2004, between the
Company and ThinkFire Services USA, Ltd. Previously filed as
Exhibit 10.1 to the Company's Current Report on Form 8-K filed
December 2, 2004 and incorporated herein by reference.

10.8 Securities Purchase Agreement, dated December 21, 2004, between
Company and the investors. Previously, filed as Exhibit 10.1 to the
Company's Current Report on Form 8-K filed December 28, 2004 and
incorporated herein by reference.

10.9 Securities Purchase Agreement, dated January 13, 2005, between the
Company and the investors. Previously filed as Exhibit 10.2 to the
Company's Current Report on Form 8-K filed on January 20, 2005 and
incorporated herein by reference.

10.10 Amendment to Patents Purchase, Assignment and License Agreement,
dated January 18, 2005, between the Company and Merlot
Communications, Inc. Previously filed January 24, 2005 as Exhibit
10.1 to the Company's Current Report on Form 8-K filed on January
18, 2005 and incorporated herein by reference.

10.11 Agreement, dated August 4, 2005, between the Company and David C.
Kahn. Previously filed as Exhibit 10.1 to the Company's Current
Report on Form 8-K filed August 9, 2005 and incorporated herein by
reference.

10.12 Agreement, dated August 9, 2005, between the Company and Blank Rome
LLP. Previously filed as Exhibit 10.1 to the Company's Current
Report on Form 8-K filed on August 11, 2005 and incorporated herein
by reference.

10.13 Settlement Agreement, dated November 16, 2005, among the Company,
PowerDsine Ltd and PowerDsine, Inc. Previously filed as Exhibit
10.1 to the Company's Current Report on Form 8-K filed November 17,
2005 and incorporated herein by reference.

10.14 Letter Agreement, dated March 29, 2006, between the Company and
Corey M. Horowitz. Previously filed as Exhibit 10.1 to the
Company's Current Report on Form 8-K filed March 30, 2006 and
incorporated herein by reference.

14 Code of Ethics. Previously filed as Exhibit 14 to the Company's
Annual Report on Form 10-KSB for the year ended December 31, 2004
filed on April 14, 2004 and incorporated herein by reference.

23.1* Consent of Radin Glass Co., LLP, Independent Registered Public
Accounting Firm.

23.2* Consent of Eisner LLP, former Independent Registered Public
Accounting Firm.

31.1* Section 302 Certification of Chief Executive Officer.

31.2* Section 302 Certification of Chief Financial Officer.

32.1* Section 906 Certification of Chief Executive Officer.

32.2* Section 906 Certification of Chief Financial Officer.

-------------------
* Filed herewith.

ITEM 14. PRINCIPAL ACCOUNTANT FEES AND SERVICES

AUDIT FEES

Eisner LLP, the Company's former principal independent accountant, billed
the Company aggregate fees of approximately $73,000 and $81,000 for the years
ended December 31, 2005 and December 31, 2004, respectively, for review of
financial statements included in the Company's Form 10-QSB's and for other
services in connection with statutory or regulatory filings for the year ended
December 31, 2005, for the audit of the Company's annual financial statements
for the year ended December 31, 2004 and for review of financial statements
included in the Company's Form 10-QSB's and for other services in connection
with statutory and regulatory filings for the year ended December 31, 2004. On
February 2, 2006, the Company dismissed Eisner LLP and engaged Radin, Glass Co.,
LLP as its new principal independent accountant to audit the Company's financial
statements for the year ended December 31, 2005. Before Radin, Glass & Co., LLP
and Eisner LLP were engaged to render audit services for the Company for the
years ended December 31, 2005 and December 31, 2004, respectively, the
engagements were pre-approved by the Company's Audit Committee.

AUDIT RELATED FEES, TAX FEES AND ALL OTHER FEES

Eisner LLP and Radin, Glass Co., LLP did not render any other professional
service other than those discussed above for the years ended December 31, 2005
or December 31, 2004.

SIGNATURES

In accordance with the requirements of Section 13 or 15(d) of the
Securities Exchange Act of 1934, the registrant caused this report to be signed
on its behalf by the undersigned, thereunto duly authorized, in the City of New
York, State of New York, on the 11th day of April 2006.

NETWORK-1 SECURITY SOLUTIONS, INC.

By /s/ Corey M. Horowitz
------------------------------------
Corey M. Horowitz
Chairman and Chief Executive Officer

In accordance with the requirements of Section 13 or 15(d) of the
Securities Exchange Act of 1934, the registrant caused this report to be signed
on its behalf by the following persons in the capacities and on the dates
indicated:

NAME TITLE DATE
---- ----- ----

/s/ Corey M. Horowitz Chairman and Chief Executive April 11,2006
----------------------------------- Officer, Chairman of the Board of
Corey M. Horowitz Directors (principal executive
officer)

/s/ David Kahn Chief Financial Officer (principal April 11, 2006
----------------------------------- financial officer)
David Kahn

/s/ Harry Schessel Director April 11, 2006
-----------------------------------
Harry Schessel

/s/ Harry Schessel Director April 11, 2006
-----------------------------------
Robert Graifman

/s/ Robert Pons Director April 11, 2006
-----------------------------------
Robert Pons

/s/ Laurent Ohana Director April 11, 2006
-----------------------------------
Laurent Ohana

NETWORK-1 SECURITY SOLUTIONS, INC.

FINANCIAL STATEMENTS

DECEMBER 31, 2005 AND 2004

NETWORK-1 SECURITY SOLUTIONS, INC.

PAGE
----
INDEX TO FINANCIAL STATEMENTS

Reports of independent registered public accounting firm ......... F-1

Balance sheets as of December 31, 2005 and 2004 .................. F-3

Statements of operations for the years ended
December 31, 2005 and 2004 ....................................... F-4

Statements of stockholders' equity for the years ended
December 31, 2005 and 2004 ....................................... F-5

Statements of cash flows for the years ended
December 31, 2005 and 2004 ....................................... F-6

Notes to financial statements .................................... F-7

NETWORK-1 SECURITY SOLUTIONS, INC.

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Board of Directors and Stockholders
Network-1 Security Solutions, Inc.

We have audited the accompanying balance sheet of Network-1 Security Solutions,
Inc. as of December 31, 2005 and the related statements of operations,
stockholders' equity and cash flows for the year then ended. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audit.

We conducted our audit in accordance with the standards of the Public Company
Accounting Oversight Board (United States). Those standards require that we plan
and perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. An audit also includes assessing the accounting principles used and
significant estimates made by management, as well as evaluating the overall
financial statement presentation. We believe that our audit provides a
reasonable basis for our opinion.

In our opinion, the financial statements enumerated above present fairly, in all
material respects, the financial position of Network-1 Security Solutions, Inc.
as of December 31, 2005, and the results of its operations and its cash flows
for the year then ended in conformity with accounting principles generally
accepted in the United States of America.

/s/ Radin, Glass & Co., LLP

New York, New York
March 13, 2006, except for Note K as to which the date is March 29, 2006

F-1

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

Board of Directors and Stockholders
Network-1 Security Solutions, Inc.

We have audited the accompanying balance sheet of Network-1 Security Solutions,
Inc. as of December 31, 2004 and the related statements of operations,
stockholders' equity and cash flows for the year then ended. These financial
statements are the responsibility of the Company's management. Our
responsibility is to express an opinion on these financial statements based on
our audit.

In our opinion, the financial statements enumerated above present fairly, in all
material respects, the financial position of Network-1 Security Solutions, Inc.
as of December 31, 2004, and the results of its operations and its cash flows
for the year then ended in conformity with accounting principles generally
accepted in the United States of America.

/s/ Eisner LLP

New York, New York
February 22, 2005

F-2

NETWORK-1 SECURITY SOLUTIONS, INC.

BALANCE SHEETS

DECEMBER 31,
----------------------------
2005 2004
------------ ------------

ASSETS
Current assets:
Cash and cash equivalents $ 938,000 $ 2,177,000
Prepaid insurance 85,000 85,000
Other current assets -- 15,000
------------ ------------

Total current assets 1,023,000 2,277,000

Security Deposits 6,000
Patents 86,000 92,000
------------ ------------

$ 1,115,000 $ 2,369,000
============ ============

LIABILITIES
Current liabilities:
Accounts payable $ 162,000 $ 437,000
Accrued expenses and other current liabilities 201,000 505,000
------------ ------------

Total current liabilities 363,000 942,000

Liability to be settled with equity instrument 294,000

Commitments and contingencies (Note E)

STOCKHOLDERS' EQUITY

Common stock - $.01 par value; authorized
50,000,000 shares; 17,697,572 and 17,097,572
shares issued and outstanding at December 31,
2005 and 2004, respectively 177,000 171,000

Additional paid-in capital 44,896,000 43,951,000
Accumulated deficit (44,321,000) (42,989,000)
------------ ------------

752,000 1,133,000
------------ ------------

$ 1,115,000 $ 2,369,000
============ ============

See notes to financial statements F-3

NETWORK-1 SECURITY SOLUTIONS, INC.

STATEMENTS OF OPERATIONS

YEAR ENDED
DECEMBER 31,
----------------------------
2005 2004
------------ ------------

Operating expenses:

General and administrative $ 1,256,000 $ 1,956,000
Patent Costs 500,000 --
------------ ------------

Operating Loss (1,756,000) (1,956,000)

Reversal of prior year accruals no longer required 385,000
Interest income 39,000 3,000
------------ ------------

Net Loss (1,332,000) (1,953,000)

Deemed Dividend on Conversion of common to Preferred -- (273,000)
Deemed dividend on extension of warrants to preferred
stockholders and warrants issued in connection with
anti-dilution provision (500,000) (1,179,000)
------------ ------------

Net loss attributable to common stockholders $ (1,832,000) $ (3,405,000)
============ ============

NET LOSS PER COMMON SHARE-BASIC AND DILUTED $ (0.10) $ (0.26)

WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING 17,676,202 13,184,551
============ ============

See notes to financial statements F-4

NETWORK-1 SECURITY SOLUTIONS, INC.

STATEMENTS OF STOCKHOLDERS' EQUITY

SERIES D CONVERTIBLE SERIES E CONVERTIBLE
PREFERRED STOCK PREFERRED STOCK COMMON STOCK ADDITIONAL
------------------ --------------------- -------------------- PAID-IN ACCUMULATED
SHARES AMOUNT SHARES AMOUN SHARES AMOUNT CAPITAL DEFICIT TOTAL
-------- -------- ---------- --------- ---------- -------- ----------- ------------ -----------

BALANCE - JANUARY 1, 2004 231,054 2,000 2,483,508 25,000 8,314,458 83,000 41,443,000 (41,036,000) 517,000
Conversion of Series D and
E preferred stock into
common stock (231,054) (2,000) (2,483,508) (25,000) 6,698,114 67,000 (40,000) 0
Issuance of stock options
to consultants 51,000 51,000
Sale of common stock 2,085,000 21,000 2,014,000 2,035,000
Issuance of options for
services 61,000 61,000
Issuance of options to an
employee director 422,000 422,000
Extension of warrants
issued to preferred
stockholders
Net loss (1,953,000) (1,953,000)
-------- -------- ---------- --------- ---------- -------- ----------- ------------ -----------
BALANCE - DECEMBER 31, 2004 17,097,572 171,000 43,951,000 (42,989,000) 1,133,000
-------- -------- ---------- --------- ---------- -------- ----------- ------------ -----------
Issuance of stock options
to consultants 83,000 83,000
Sale of common stock 600,000 6,000 594,000 600,000
Issuance of options to a
director 6,000 6,000
Issuance of options to an
employee
Net loss 262,000
262,000 (1,332,000) (1,332,000)
-------- -------- ---------- --------- ---------- -------- ----------- ------------ -----------
BALANCE - DECEMBER 31, 2005 0 $ 0 0 $ 0 17,697,572 $177,000 $44,896,000 $(44,321,000) $ 752,000
======== ======== ========== ========= ========== ======== =========== ============ ===========

See notes to financial statements F-5

NETWORK-1 SECURITY SOLUTIONS, INC.

STATEMENTS OF CASH FLOWS

YEAR ENDED
DECEMBER 31,
----------------------------
2005 2004
------------ ------------

CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss $ (1,332,000) $ (1,953,000)

Adjustments to reconcile net loss to net cash used in
operating activities:
Issuance of options to an employee director 6,000 422,000
Valuation adjustment for outstanding stock options (32,000) 291,000
Issuance of options for services 83,000 61,000

Depreciation and amortization 6,000 7,000

Changes in:

Prepaid expenses and other current assets 15,000 (14,000)
Security deposits (6,000)
Accounts payable, accrued expenses and other current
liabilities (579,000) 344,000
------------ ------------

Net cash used in operating activities (1,839,000) (842,000)
------------ ------------

CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from sale of common stock 600,000 2,085,000
Expenses in connection with issuance of common stock (50,000)
------------ ------------

Net cash provided by financing activities 600,000 2,035,000
------------ ------------

NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS (1,239,000) 1,193,000
Cash and cash equivalents - beginning of year 2,177,000 984,000
------------ ------------

CASH AND CASH EQUIVALENTS - END OF YEAR $ 938,000 $ 2,177,000
============ ============

NON-CASH TRANSACTIONS:
Non-employee compensation paid with stock options $ 83,000 $ 51,000
Liability settled with stock options $ 262,000 --

See notes to financial statements F-6

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE A - THE COMPANY

Network-1 Security Solutions, Inc. (the "Company") is engaged in the
acquisition, licensing and protection of its intellectual property and
proprietary technologies. The Company owns six patents covering various
telecommunications and data networking technologies (the "Patent Portfolio").
The Company's strategy is to pursue licensing and strategic business alliances
with companies that manufacture and sell products that make use of the
technologies underlying the Patent Portfolio as well as with other users of the
technologies who benefit directly from the technologies including corporate,
educational and governmental entities. In February 2004, the Company initiated
its licensing efforts relating to its remote power patent which pertains to the
control of power delivery over Ethernet networks for the purpose of remotely
powering network devices. As of December 31, 2005, the Company has not entered
into any licensing arrangements with respect to its Patent Portfolio.

NOTE B -SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

[1] CASH EQUIVALENTS:

The Company considers all highly liquid short-term investments purchased
with an original maturity of three months or less to be cash equivalents.

[2] REVENUE RECOGNITION:

The Company plans on recognizing revenue received from the licensing of its
intellectual property portfolio in accordance with Staff Accounting
Bulletin No. 104, "Revenue Recognition" ("SAB No. 104") and related
authoritative pronouncements. Under this guidance, revenue is recognized
when (i) persuasive evidence of an arrangement exists, (ii) all obligations
have been performed pursuant to the terms of the license agreement, (iii)
amounts are fixed or determinable and (iv) collectibility of amounts is
reasonably assured.

[3] PATENTS:

The Company owns a Patent Portfolio that relates to various
telecommunications and data networking technologies. The Company
capitalizes the costs associated with acquisition, registration and
maintenance of the patents and amortizes these assets over their remaining
useful lives on a straight-line basis. Any further payments made to
maintain or develop the patents would be capitalized and amortized over the
balance of the useful life of the patents.

[4] IMPAIRMENT OF LONG-LIVED ASSETS:

In accordance with Statement of Financial Accounting Standards ("SFAS") No.
144, "Accounting for the Impairment or Disposal of Long-Lived Assets,"
intangible assets with finite lives are tested for impairment whenever
events or circumstances indicate that the carrying amount may not be
recoverable. Accordingly, the Company records impairment losses on
long-lived assets used in operations or expected to be disposed of when
indicators of impairment exist and the undiscounted cash flows expected to
be derived from those assets are less than carrying amounts of those
assets. During the years ended December 31, 2005 and 2004, there was no
impairment to its patents.

[5] INCOME TAXES:

The Company utilizes the liability method of accounting for income taxes.
Under such method, deferred tax assets and liabilities are recognized for
the future tax consequences attributable to differences between the
financial statement carrying amounts of existing assets and liabilities and
their respective tax bases. Deferred tax assets and liabilities are
measured using enacted tax rates in effect at the balance sheet date. The
resulting asset or liability is adjusted to reflect enacted changes in tax
law. Deferred tax assets are reduced, if necessary, by a valuation
allowance when the likelihood of realization is not assured.

F-7

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE B - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

[6] NET LOSS PER SHARE:

Basic net loss per share is calculated by dividing the net loss by the
weighted average number of outstanding common shares during the year.
Diluted per share data includes the dilutive effects of options, warrants
and convertible securities. Potential common shares of 11,267,319 and
10,111,299 at December 31, 2005 and 2004, respectively, are not included in
the calculation of diluted loss per share because its effect will be
anti-dilutive. Such potential common shares are options, warrants,
convertible preferred stock and convertible notes.

[7] USE OF ESTIMATES:

The preparation of financial statements in conformity with accounting
principles generally accepted in the United States of America requires
management to make estimates and assumptions that affect the reported
amounts of assets and liabilities and disclosure of contingent assets and
liabilities at the date of the financial statements and the reported
amounts of revenues and expenses during the reporting period. Actual
results could differ from those estimates.

[8] FINANCIAL INSTRUMENTS:

The carrying amounts of cash and cash equivalents, accounts payable and
accrued expenses approximate their fair value due to the short period to
maturity of these instruments.

[9] STOCK-BASED COMPENSATION:

The Company accounts for stock-based employee compensation under Accounting
Principles Board ("APB") Opinion No. 25, "Accounting for Stock Issued to
Employees," and related interpretations. The Company has adopted the
disclosure-only provisions of SFAS No. 123, "Accounting for Stock-Based
Compensation;" and SFAS No. 148, "Accounting for Stock-Based Compensation -
Transition and Disclosure," which was released in December 2002 as an
amendment of SFAS No. 123. The following table illustrates the effect on
net loss and loss per share if the fair value-based method had been applied
to all awards:

YEAR ENDED
DECEMBER 31,
-----------------------------
2005 2004
------------ ------------

Reported net loss attributable to
common Stockholders $ (1,832,000) $ (3,405,000)
Stock-based employee compensation
expense included in reported
net loss 6,000 422,000
Stock-based employee compensation
determined under the fair
value-based method (613,000) (1,744,000)
------------ ------------

Pro forma net loss $ (2,439,000) $ (4,727,000)
============ ============
Net loss per common share (basic
and diluted):
As reported $ (0.10) $ (0.26)
============ ============

Pro forma $ (0.14) $ (0.36)
============ ============

F-8

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE B - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

The fair value of options on the date of grant is estimated using the
Black-Scholes option-pricing model utilizing the following weighted average
assumptions:

YEAR ENDED DECEMBER 31,
----------------------------------
2005 2004
------------ ------------
Risk-free interest rates 3.87 - 4.15% 2.67 - 3.62%
Expected option life in years 5.00 3.00
Expected stock price volatility 195.50 - 237.35% 111.88 - 231.34%
Expected dividend yield 0.00% 0.00%

The weighted average fair value on the option grant date during the years
ended December 31, 2005 and 2004 were $ 0.96 and $0.37 per option,
respectively.

[10] RECENTLY ISSUED ACCOUNTING STANDARDS:

In December 2004, the Financial Accounting Standards Board ("FASB") issued
Statement of Financial Accounting Standards No. 123R, "Share-Based Payment"
("SFAS 123R"), which replaces SFAS No. 123, "Accounting for Stock-Based
Compensation," and supersedes APB Opinion No. 25, "Accounting for Stock
Issued to Employees." This statement requires all share-based payments to
employees be recognized in the financial statements based on their fair
values on the date of grant. The Company currently uses the intrinsic value
method to measure compensation expense for stock-based awards which
requires a pro forma net income and earnings per share presentation as if
the Company had used a fair-value based method provided by SFAS 123 to
measure stock-based compensation. The Company is required to adopt SFAS
123R in the first quarter of 2006. The Company is evaluating the
requirements of SFAS 123R and expects that any future issuance of options
could upon its adoption have a material impact on the Company's results of
operations and earnings (loss) per share.

In November of 2004, the FASB issued SFAS No. 151, "Inventory Costs," which
amends the guidance in ARB No. 43, Chapter 4, "Inventory Pricing," to
clarify the accounting for abnormal amounts of idle facility expense,
freight, handling costs, and wasted material (spoilage). This statement
requires that those items be recognized as current-period charges
regardless of whether they meet the criterion of "so abnormal" as stated in
ARB No. 43. Additionally, SFAS 151 requires allocation of fixed production
overheads to the costs of conversion be based on the normal capacity of the
production facilities. The Company is required to adopt the provision of
SFAS No. 151 in the third quarter of 2006. The Company does not expect SFAS
151 to have a material impact on its results of operations or financial
condition.

In December of 2004, the FASB issued SFAS No. 153, "Exchanges of
Nonmonetary Assets - An Amendment of APB Opinion No. 29 ("SFAS 153"). SFAS
153 eliminates the exception for nonmonetary exchanges of similar
productive assets and replaces it with a general exception for exchanges of
nonmonetary assets that do not have commercial substance. SFAS 153 is
effective for the fiscal periods beginning after June 15, 2005 and is
required to be adopted by the Company in the first quarter of 2006. The
Company does not expect that the adoption of SFAS 153 will have a material
impact on the Company's results of operations or financial condition.

In May 2005, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards ("SFAS") No. 154, "Accounting Changes and
Error Corrections, a replacement of APB Opinion No. 20 and FASB Statement
No. 3." SFAS No. 154 requires retroactive application to prior periods'
financial statements of voluntary changes in accounting principle unless it
is impracticable. The Company is required to adopt SFAS 154 in the first
quarter of 2006. The Company does not expect SFAS 154 to have a material
impact on its results of operations or financial condition.

F-9

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE B - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

FASB Staff Position No. FAS 115-1 and FAS 124-1, "The Meaning of
Other-Than-Temporary Impairment and Its Application to Certain Investments"
(the "FSP"), was issued on November 3, 2005 and addresses the determination
of when an investment is considered impaired; whether the impairment is
other than temporary; and how to measure an impairment loss. The FSP also
addresses accounting considerations subsequent to the recognition of an
other-than-temporary impairment on a debt security, and requires certain
disclosures about unrealized losses that have not been recognized as
other-than-temporary impairments. The Company is required to adopt SFAS 154
in the first quarter of 2006. The Company does not expect SFAS 154 to have
a material impact on its results of operations or financial condition.

NOTE C- PATENTS

In November 2003, the Company acquired a portfolio of telecommunications
and data networking patents (six patents) from Merlot Communications, Inc.
(the "Seller") in which certain principal stockholders of the Company owned
a majority of the Seller's voting stock at the time of the transaction. The
purchase price for the Patent Portfolio was $100,000, paid in cash. The
cash price paid has been capitalized and is being amortized over the
remaining useful life of each patent. In addition, the Company has granted
the Seller a nonexclusive, royalty free, perpetual license for the term of
each patent to use the patents for the development, manufacture or sale of
its own branded products to end users. The Company had agreed to pay the
Seller 20% of the net income, as defined, after the first $4,000,000 of net
income realized by the Company on a per patent basis from the sale or
licensing of the patents. On January 18, 2005, the Company and Seller
amended the Patent Purchase Agreement (the "Amendment") pursuant to which
the Company paid additional purchase price of $500,000 to Seller in
consideration for the restructuring of future contingent payments to Seller
from the licensing or sale of the Patents. Such $500,000 has been recorded
as an expense in the accompanying statement of operations. The Amendment
provides for future contingent payments by the Company to Seller of $1.0
million upon achievement of $25 million of Net Royalties (as defined), an
additional $1.0 million upon achievement of $50 million of Net Royalties
and an additional $500,000 upon achievement of $62.5 million of Net
Royalties from licensing or sale of the patents acquired from Merlot (see
Note H[5]).

For the years ended December 31, 2005 and 2004, the Company has not derived
any income from sale or licensing of these patents.

Balance - January 1, 2004
Additions $ 99,000
Amortization (7,000)
------------

Balance - December 31, 2004 92,000
Amortization (6,000)
------------

Balance - December 31, 2005 $ 86,000
============

NOTE D - STOCKHOLDERS' EQUITY

[1] PREFERRED STOCK:

In April 2004, the Company entered into an exchange agreement with the
holders of all of the Company's outstanding shares of Series E ("Series E")
and Series D ("Series D") convertible preferred stock to exchange 2,483,508
shares of Series E for 6,208,770 shares of common stock and 231,054 shares
of Series D for 489,348 shares of common stock. As an inducement for
agreeing to such conversion, the holders of the Series E and Series D
received 1.25 times the number of shares of common stock that each
preferred stockholder would have otherwise received upon conversion. The
holders of preferred stock participating in the exchange included, among
others, CMH Capital Management Corp. ("CMH") (1,084,935 of Series E
shares), the wife of Corey M. Horowitz, CEO of the Company (35,377 of
Series E shares) and other principal stockholders of the Company

F-10

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE D - STOCKHOLDERS' EQUITY (CONTINUED)

(990,552 of Series E shares and 209,125 of Series D shares). Upon closing
of the exchange agreement, there were no outstanding shares of preferred
stock. Corey M. Horowitz, Chairman and Chief Executive Officer and a
principal stockholder of the Company, is the sole owner and officer of CMH.

[2] PRIVATE PLACEMENT:

(a) On December 21, 2004, the Company completed the first closing of a
private placement of 2,085,000 shares of common stock and three-year
warrants to purchase 1,563,750 shares of common stock (warrants to purchase
1,042,500 shares of common stock at an exercise price of $1.25 and warrants
to purchase 521,250 shares of common stock at an exercise price of $1.75)
for an aggregate purchase price of $2,035,000, net of $50,000 issuance
costs. On January 13, 2005, the Company completed a second closing with
respect to the private placement of securities, which consisted of an
additional 600,000 shares of common stock and warrants to purchase an
additional 450,000 shares of common stock (warrants to purchase 300,000
shares of common stock at an exercise price of $1.25 and warrants to
purchase 150,000 shares of common stock at an exercise price of $1.75) for
an aggregate purchase price of $600,000. In connection with the first
closing of the private placement in December 2004, the Company issued to a
finder, warrants to purchase 50,000 shares of common stock at an exercise
price of $1.00 expiring in December 2009. As part of the private placement,
the Company filed a registration statement to register the common stock and
the shares issuable upon exercise of the warrants.

(b) In connection with the private placement and anti-dilution provisions
for the warrants previously issued to FalconStor Software, Inc., the
Company issued warrants to purchase an aggregate of 135,000 shares of
common stock (6,287 shares in January 2005 and 128,713 shares in December
2004) at an exercise price of $1.00 expiring in October 2006. The
associated expenses, which are treated as imputed dividend, are based on
the fair value of these warrants using the Black-Scholes model utilizing
the risk-free interest rate of 2.67% and 3.01% life of 2 years, volatility
of 270% and dividend yield of 0% in 2005 and 2004, respectively. Such
expenses amounted to $6,000 and $147,000 and are presented as deemed
dividend in the accompanying statement of operations for the years ended
December 31, 2005 and 2004, respectively.

[3] STOCK OPTIONS:

During 1996, the Board of Directors and stockholders approved the adoption
of the 1996 Stock Option Plan (the "1996 Plan"). The 1996 Plan, as amended,
provides for the granting of both incentive and non-qualified options to
purchase common stock of the Company. A total of 4,000,000 shares are
provided for under the 1996 Plan.

The term of options granted under the 1996 Plan may not exceed ten years
(five years in the case of an incentive stock option granted to an
employee/director owning more than 10% of the voting stock of the Company)
("10% stockholder"). The option price for incentive stock options cannot be
less than 100% of the fair market value of the shares of common stock at
the time the option is granted (110% for a 10% stockholder). Option terms
and vesting periods are set by the Compensation Committee in its
discretion.

F-11

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE D - STOCKHOLDERS' EQUITY (CONTINUED)

The following table summarizes stock option activity for the years ended
December 31:

2005 2004
---------------------------- ----------------------------
WEIGHTED WEIGHTED
AVERAGE AVERAGE
OPTIONS EXERCISE OPTIONS EXERCISE
OUTSTANDING PRICE OUTSTANDING PRICE
----------- ---------- ----------- ----------

Options outstanding at beginning
of year 5,637,998 $ 0.80 3,272,370 $ 0.99
Granted 699,733(C)(D) 1.04 2,365,628(A)(B) 0.62
Cancelled/expired
-----------

Options outstanding at end of year 6,337,731 0.86 5,637,998 0.84
=========== ===========

Options exercisable at end of year 5,971,690 $ 0.87 4,007,995 0.80
=========== ===========

(a) Includes options issued to Corey M. Horowitz, Chairman and Chief
Executive Officer, with respect to his two-year employment agreement
entered into with the Company in November 2004, to purchase an
aggregate of 1,500,000 shares of common stock consisting of (i)
ten-year non-qualified options to purchase 1,100,000 shares at an
exercise price of $0.25 per share fully vested on the date of grant
and (ii) five-year incentive stock options to purchase 400,000 shares
at an exercise price of $0.68 per share which vested 50% on the date
of grant and 50% one year thereafter, subject to acceleration upon a
change of control (see Note I[2]). The Company recognized $407,000 of
expense in 2004 related to the 1,100,000 options representing the
difference between the exercise price of the option and the market
price on the date of grant. The Company did not recognize compensation
expense for 400,000 options as the exercise price exceeded the market
price on the date of grant.

(b) Includes 745,628 stock options issued to Mr. Horowitz (see Note I[2])
in accordance with an anti-dilution provision of his employment
agreement. The Company recognized $15,000 of expense in 2004 related
to these options representing the difference between the exercise
price and the market price.

(c) Includes 449,733 stock options issued to Mr. Horowitz (see Note I[2])
in accordance with an anti-dilution provision of his agreement. No
expense has been recorded as the exercise price exceeds market price
on date of grant.

(d) Includes an aggregate of 250,000 stock options issued to (i) the Chief
Financial Officer to purchase 75,000 shares of common stock at an
exercise price of $.80 per share (see Note I[1]), (ii) two consultants
to purchase an aggregate of 125,000 shares of common stock at an
exercise price of $.80 per share, and (iii) a director to purchase
50,000 shares of common stock at an exercise price of $.80 per share.

F-12

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE D - STOCKHOLDERS' EQUITY (CONTINUED)

The following table presents information relating to all stock options
outstanding and exercisable at December 31, 2005:

WEIGHTED
WEIGHTED AVERAGE WEIGHTED
RANGE OF AVERAGE REMAINING AVERAGE
EXERCISE OPTIONS EXERCISE LIFE IN OPTIONS EXERCISE
PRICE OUTSTANDING PRICE YEARS EXERCISABLE PRICE

$0.12 - $2.91 6,022,006 $ 0.65 7.10 5,690,340 $0.66
$3.00 - $3.75 146,625 3.44 3.12 112,250 3.56
$4.13 - $5.69 69,600 5.17 4.11 69,600 5.17
$6.00 - $6.88 89,500 6.23 3.46 89,500 6.23
$10.00 10,000 10.00 4.21 10,000 10.00
--------- ---------
6,337,731 0.86 6.92 5,971,690 0.87
========= =========

On April 18, 2002, in consideration of additional consulting and financial
advisory services, the Company issued to CMH an option to purchase 750,000
shares of the common stock at an exercise price of $1.20 per share, which
was the market price of the Company's common stock on the date of issuance.
The options vested over a three-year period in equal amounts of 250,000 per
year beginning April 18, 2003. These options are treated as contingent
options and were originally priced in the quarter ended June 30, 2002 at
$416,000. Subsequently, they are revalued at each balance sheet date. On
April 18, 2003, 250,000 of these options vested, having a fair value of
$5,000. Accordingly, $5,000 was reallocated to additional paid-in capital
with a corresponding reduction to the liability. On April 18, 2004, 250,000
of these options vested having a fair value of $51,000. Accordingly,
$51,000 was reallocated to additional paid-in-capital with a corresponding
reduction to the liability. On April 18, 2005, the remaining 250,000
options were vested and revalued from $294,000 at December 31, 2004 to
$262,000 which was reallocated to additional paid in capital. Any increase
or decrease in the valuation has been reflected as an addition or reduction
of general and administrative expenses at each balance sheet date.

F-13

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE D - STOCKHOLDERS' EQUITY (CONTINUED)

[4] WARRANTS:

As of December 31, 2005, the following are the outstanding warrants to
purchase shares of the Company's common stock:

NUMBER
OF EXERCISE
WARRANTS PRICE EXPIRATION DATE
-------- ----- ---------------
100,104 $ 6.44 March 14, 2006 - February 24, 2007
93,120 9.66 March 14, 2006
300,000 0.70 July 11, 2011 (a)
250,000 1.48 October 8, 2006 (a)
1,245,972 1.11 March 22, 2006 (b)
106,180 1.00 March 22, 2006 (b)
635,000 1.01 October 2, 2006 (c)
66,621 2.03 April 13, 2006 (d)
64,352 2.00 July 2, 2006 (d)
4,489 2.10 October 1, 2006 (d)
1,042,500 1.25 December 21, 2007 (e)
521,250 1.75 December 21, 2007 (e)
50,000 1.00 December 21, 2009 (e)
---------
300,000 1.25 January 13, 2010 (f)
150,000 1.75 January 13,2010 (f)
---------
4,929,588
=========

(a) Issued to CMH in 2001, a company owned by the Chairman and Chief
Executive Officer.

(b) Issued in connection with Series D preferred stock and notes in
December 1999. As a result of private placement in December 2004, the
warrant holders were entitled to additional warrants under
anti-dilution provisions. However, in lieu of such additional
warrants, the Company and the warrant holders agreed to extend the
term of the 1,352,152 warrants for an additional year until December
22, 2005. In December 2005, these warrants were further extended for
three months until March 22, 2006. The associated expenses in
connection with these extensions of warrants are shown as deemed
dividend in the accompanying statement of operations for the years
ended December 31, 2005 and 2004.

(c) Issued in 2001 private offering of Series E preferred stock and
additional warrants to purchase an aggregate of 135,000 shares issued
with respect to the anti-dilution provisions of the warrants as a
result of private offerings completed in December 2005 and January
2006 (see Note D[2](b)).

(d) Issued to a software development company for services rendered (see
Note E [5]).

(e) Issued in connection with 2004 private offering of common stock (see
Note D[2](a)).

(f) Issued in connection with the 2005 private offering of common stock
(see Note D[2](a)).

NOTE E - COMMITMENTS AND CONTINGENCIES

[1] SERVICES AGREEMENT:

On November 30, 2004, the Company entered into a master services agreement
(the "Agreement") with ThinkFire Services USA, Ltd. ("ThinkFire") pursuant
to which ThinkFire has been granted the exclusive

F-14

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

worldwide rights (except for direct efforts by the Company and related
companies) to negotiate license agreements for the Remote Power Patent with
respect to certain potential licensees agreed to between the parties.
Either the Company or ThinkFire can terminate the Agreement upon 60 days'
notice for any reason or upon 30 days' notice in the event of a material
breach. The Company has agreed to pay ThinkFire a fee not to exceed 20% of
the royalty payments received from license agreements consummated by
ThinkFire on its behalf.

[2] CONTINGENT LEGAL FEES:

In August 2005, the Company entered into an agreement with Blank Rome, LLP
("Blank Rome"), a national law firm, pursuant to which Blank Rome has been
engaged to represent the Company in connection with all litigation
involving the Company's remote power patent. Blank Rome has agreed to
represent the Company with respect to each litigation pertaining to the
remote power patent on a full contingency basis (except for any proceeding
before the International Trade Commission). As compensation for its
services on a full contingency basis, Blank Rome will receive from the
Company percentages of Net Consideration (as defined in the agreement)
ranging from 12.5% to 35% received by the Company by way of settlement or
judgment in connection with each litigation matter. The Company has also
agreed to compensate Blank Rome in an amount equal to 10% of the Net
Consideration received by the Company from certain designated parties
mutually agreed upon by the Company and Blank Rome in the event such
designated parties enter into license agreements or similar agreements with
the Company.

[3] OPERATING LEASES:

The Company leases its principal office space in New York City at a monthly
rent of $3,150 for 2005.

Rental expense for the years ended December 31, 2005 and 2004 aggregated
$43,000 and $36,000, respectively.

[4] SAVINGS AND INVESTMENT PLAN:

The Company has a Savings and Investment Plan which allows participants to
make contributions by salary reduction pursuant to Section 401(k) of the
Internal Revenue Code of 1986. The Company also may make discretionary
annual matching contributions in amounts determined by the Board of
Directors, subject to statutory limits. The Company did not make any
contributions to the 401(k) Plan during the years ended December 31, 2005
and 2004.

[5] SOFTWARE DEVELOPMENT CONTRACT DISPUTE:

The Company has a dispute with a software development company pertaining to
the number of warrants the Company is required to issue for services
rendered. The software development company has claimed they are entitled to
approximately 325,000 additional warrants than the Company has included in
the warrants outstanding in Note D[4]. At December 31, 2004, the Company
has included in accrued expenses $385,000 and this amount was subsequently
reversed in 2005.

NOTE F - INCOME TAXES

At December 31, 2005, the Company has available net operating loss carryforwards
to reduce future federal taxable income of approximately $38,975,000 for tax
reporting purposes, which expire from 2009 through 2025.

F-15

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE F - INCOME TAXES (CONTINUED)

Pursuant to the provisions of the Internal Revenue Code, future utilization of
these past losses is subject to certain limitations based on changes in the
ownership of the Company's stock that have occurred.

The principal components of the net deferred tax assets are as follows:

YEAR ENDED
DECEMBER 31,
----------------------------
2005 2004
------------ ------------
Deferred tax assets:
Net operating loss carryforwards $ 14,615,000 $ 12,174,000
Options and warrants not yet deducted,
for tax purposes 1,080,000 947,000
Other 0 126,000
------------- ------------
15,695,000 13,247,000
Valuation allowance (15,695,000) (13,247,000)
------------ ------------
Net deferred tax assets $ 0 $ 0
============ ============

The Company has recorded a valuation allowance for the full amount of its
deferred tax assets as the likelihood of the future realization cannot be
presently determined and any disallowable for changes of ownerships. The
valuation allowance increased by $2,448,000 in 2005 and $738,000 in 2004.

The reconciliation between the taxes as shown and the amount that would be
computed by applying the statutory federal income tax rate to the loss before
income taxes is as follows:

YEAR ENDED
DECEMBER 31,
-------------------
2005 2004
------ ------

Income tax benefit - statutory rate (34.0)% (34.0)%
State and local, net (3.5)% (3.5)%
Valuation allowance on deferred tax assets 37.5 % 37.5 %

NOTE G - CONCENTRATIONS

The Company places its cash investments in high quality financial institutions
insured by the Federal Deposit Insurance Corporation ("FDIC"). At December 31,
2005, the Company maintained cash balances of $824,000 in excess of FDIC limits.

NOTE I - RELATED PARTY TRANSACTIONS

[1] In April 2004, the Company entered into an exchange agreement with the
holders of all of the Company's outstanding shares of Series E and Series D
convertible preferred stock to convert 2,483,508 shares of Series E into
6,208,770 shares of common stock and 231,054 shares of Series D into
489,348 shares of common stock. As an inducement for agreeing to such
conversion, the holders of the Series E and Series D received 1.25 times
the number of shares of common stock that each preferred stockholder would
have otherwise received upon conversion. The holders of preferred stock
participating in the

F-16

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE H - RELATED PARTY TRANSACTIONS (CONTINUED)

exchange included, among others, CMH (1,084,935 of Series E shares), the
wife of Corey M. Horowitz (35,377 of Series E shares) and other principal
stockholders of the Company (990,552 of Series E shares and 209,125 of
Series D shares). Upon closing of the agreement, there were no outstanding
shares of preferred stock. As a result of this transaction the Company has
imputed a dividend in the amount of $ 273,000 for the year ended December
31, 2004.

[2] In November 2004, the Company entered into a two-year employment agreement
with Corey M. Horowitz to continue to serve as Chairman and Chief Executive
Officer at a base salary of $250,000 for the first year and $275,000 for
the second year (see Note I[2]).

[3] On December 21, 2004, the Company extended the exercise period for the 1999
Warrants by an additional year until December 22, 2005. In December 2005,
these warrants were further extended for three months until March 22, 2006.
The 1999 Warrants were originally issued as part of a private offering
completed by the Company in December 1999. In connection with these
extensions, the change in fair value of $494,000 and $1,032,000 using the
Black-Scholes model utilizing the risk-free interest rate of 3.97% and
2.67%, life of 0.25 year and 1 year, volatility of 174% and dividend yield
of 0% was recorded as a deemed dividend in 2005 and 2004, respectively.
Corey M. Horowitz, Chairman and Chief Executive Officer of the Company,
owns 85,220 warrants of the 1999 Warrants. (See Note D[4](b)).

[4] On December 21, 2004, the Company completed a private placement of
2,085,000 shares of common stock and three year warrants to purchase
1,563,750 shares of common stock for an aggregate purchase price of
$2,035,000, net of $50,000 in issuance costs. An investor in the above
private placement (100,000 shares of common stock and warrants to purchase
75,000 shares of common stock) is a director of the Company.

[5] On November 18, 2003, the Company entered into an agreement (the
"Agreement") with Merlot Communications, Inc. ("Merlot"), a broadband
communications solutions provider, pursuant to which the Company acquired
six patents (the "Patent Portfolio") relating to various telecommunications
and data networking technologies from Merlot, for a purchase price of
$100,000 and contingent future payments equal to 20% of the net income (as
defined in the Agreement) of the Company from the sale or licensing of the
Patents after the Company achieves $4.0 million of net income for each
patent comprising the Patent Portfolio ("Future Contingent Payments"). On
January 18, 2005, the Company and Merlot entered into an amendment to the
Agreement (the "Amendment") pursuant to which the Company paid $500,000 to
Merlot in consideration for the restructuring of the Future Contingent
Payments to Merlot from the licensing or sale of the Patent Portfolio. The
Amendment provides for future contingent payments by the Company to Merlot
of $1.0 million upon achievement of $25 million of Net Royalties (as
defined), an additional $1.0 million upon achievement of $50 million of Net
Royalties and an additional $500,000 upon achievement of $62.5 million of
Net Royalties from licensing or sale of the patents acquired from Merlot.
Certain principal stockholders of the Company, and their affiliates and
related parties, owned a majority of the outstanding voting stock of Merlot
at the time of the Agreement and the Amendment and were also directors of
Merlot at the time of the Agreement and the Amendment.

NOTE I - EMPLOYMENT ARRANGEMENTS AND OTHER AGREEMENTS

[1] In January 2004, the Company entered into an agreement with an individual
to serve as the Company's Chief Financial Officer ("CFO"). The agreement
expired on December 31, 2004 and provided for a base salary of $5,500 per
month for the period January 22, 2004 through April 30, 2004, $4,500 per
month for the

F-17

NETWORK-1 SECURITY SOLUTIONS, INC.

NOTES TO FINANCIAL STATEMENTS
DECEMBER 31, 2005 AND 2004

NOTE I - EMPLOYMENT ARRANGEMENTS AND OTHER AGREEMENTS (CONTINUED)

period May 1, 2004 through August 31, 2004 and $3,500 per month from
September 1, 2004 through December 31, 2004. In connection with his
agreement, the CFO received options to purchase 50,000 shares of common
stock of the Company at $0.35 per share under the Company's stock option
plan, at the fair market value of the shares on the date of the grant,
20,000 of these options vested immediately and the balance vested on a
monthly basis through December 31, 2004. In August 2005, the Company
renewed its arrangement with its CFO through December 31, 2006 and issued
options to the CFO to purchase 75,000 shares of common stock, at an
exercise price of $.80 per share, which vested 30,000 shares on the date of
grant and the balance of 45,000 shares shall vest in equal amounts of 7,500
shares on a quarterly basis beginning September 30, 2005 through December
31, 2006.

[2] On November 26, 2004, the Company entered into an employment agreement with
Corey M. Horowitz pursuant to which he agreed to continue to serve as
Chairman and Chief Executive Officer of the Company for a two-year term at
an annual base salary of $250,000 for the first year and $275,000 for the
second year. Mr. Horowitz was also issued options to purchase an aggregate
of 1,500,000 shares of the Company's common stock consisting of (i) a ten
(10) year fully vested option to purchase 1,100,000 shares at an exercise
price of $0.25 per share, and (ii) a five-year option to purchase 400,000
shares at an exercise price of $0.68 per share which vested 50% on the date
of grant and 50% one year thereafter, subject to acceleration upon a change
of control (see Note D[3](a)). In addition, Mr. Horowitz will receive a
bonus of 5% of the Company's royalties or other payments received from
licensing its patents. This bonus will continue to be paid to Mr. Horowitz
for a period of five (5) years following the term of the employment
agreement with respect to licenses entered into by the Company during the
term of the employment agreement, provided that he has not been terminated
by the Company "for cause" or by Mr. Horowitz himself without "good
reason". For the year ended December 31, 2005, Mr. Horowitz was paid a
discretionary bonus of $100,000 in February 2006. Mr. Horowitz shall
receive severance equal to 12 months base salary in the event his
employment is terminated "without cause" or by Mr. Horowitz for "good
reason". Mr. Horowitz was also granted certain anti-dilution rights which
provide that if at any time during the period ending December 31, 2005, in
the event that the Company completes an offering of its common stock or any
securities convertible or exercisable into common stock, he will receive,
at the same price as the securities issued in the financing, such number of
additional stock options so that he maintains the same ownership percentage
of (20.11%) of the Company based upon options and warrants owned by him and
CMH (exclusive of his ownership of shares of common stock) as he owned as
of November 26, 2004. As a result of the closings of the private placement
on December 31, 2004 and January 13, 2005 and in accordance with the
anti-dilution protection afforded to Mr. Horowitz in his employment
agreement, Mr. Horowitz earned seven year options to purchase an aggregate
of 1,195,361 shares at an exercise price of $1.18 per share (see Notes
D[3](b) and D[3](c)).

[3] In September 2005, Laurent Ohana was elected to the Board of Directors and
was granted an option to purchase 50,000 shares of the Company's common
stock, at an exercise price of $.80 per share, which vest at the rate of
12,500 shares per quarter beginning December 16, 2005.

NOTE J - LITIGATION

[1] On November 17, 2005 the Company entered into a Settlement Agreement with
PowerDsine, Inc and PowerDsine Ltd. which dismisses, with prejudice, a
civil action brought by PowerDsine in the United States District Court for
the Southern District of New York that sought a declaratory judgment that
U.S. Patent No. 6,218,930 (the "Remote Power Patent") owned by the Company
was invalid and not infringed by PowerDsine and/or its customers. Under the
terms of the Settlement Agreement, the Company has agreed that it will not
initiate litigation against PowerDsine for its sale of Power over Ethernet
(PoE) integrated circuits. In addition, the Company has agreed that it will
not seek damages for infringement from customers that incorporate
PowerDsine integrated circuit products in PoE capable Ethernet switches
manufactured on or before April 30, 2006. PowerDsine has agreed that it
will not initiate, assist or cooperate in any legal action relating to the
Remote Power Patent. The Company also agreed that it will not initiate
litigation against PowerDsine or its customers for infringement of the
Remote Power Patent arising from the

F-18

NOTE J - LITIGATION (CONTINUED)

manufacture and sale of PowerDsine Midspan products for three years
following the dismissal date. Following such three year period, the Company
may seek damages for infringement of the Remote Power Patent from
PowerDsine or its customers with respect to the purchase and sale of
Midspan products beginning 90 days following the dismissal date.

[2] On August 10, 2005, the Company commenced litigation against D-Link
Corporation and D-Link Systems, Incorporated (collectively, "D-Link") in
the United States District Court for the Eastern District of Texas, Tyler
division (Civil Action No. 6:05W291), for infringement of our Remote Power
Patent. The Company's complaint seeks, among other things, a judgment that
its Remote Power Patent is duly enforceable and has been infringed by the
defendants. The Company also seeks a permanent injunction restraining
defendants from continued infringement, or active inducement of
infringement by others, of the Remote Power Patent. On February 27, 2006,
the D-Link defendants filed answers and asserted counterclaims. In their
answers, the D-Link defendants asserted that they did not infringe any
valid claim of the Remote Power Patent, and further asserted that the
asserted patent claims are invalid and/or unenforceable. In addition to
these defenses, the D-Link defendants also asserted counterclaims for,
among other things, non-infringement, invalidity and unenforceability of
the Remote Power Patent. In the event that the Court determines that the
Company's Remote Power Patent was not valid or enforceable, and/or that the
defendants did not infringe, any such determination would have a material
adverse effect on the Company.

NOTE K - SUBSEQUENT EVENTS

[1] During January 2006 through March 22, 2006, warrants to purchase 1,352,152
shares of common stock were exercised, at exercise prices of $1.00 and
$1.114 per share, resulting in aggregate proceeds to the Company of
$1,493,726 (see Note D[4](b)). Mr. Horowitz exercised warrants to purchase
85,220 shares as part of such warrant exercises.

[2] On March 29, 2006, the Company entered into an amendment to its employment
agreement with Mr. Horowitz pursuant to which the anti-dilution protection
afforded Mr. Horowitz (see Note I [2]) was extended until November 26, 2006
up to a maximum financing of $2.5 million.

F-19

EXHIBIT 23.1
------------

CONSENT OF INDEPENDENT PUBLIC REGISTERED ACCOUNTING FIRM

We consent to the incorporation by reference in the registration
statements filed on Form S-8 (file number 333-64066) of Network-1 Security
Solutions, Inc. of our report dated March 13, 2006 related to the financial
statements of Network-1 Security Solutions, Inc. included in this Annual Report
for the year ended December 31, 2005.

/s/ Radin, Glass & Co., LLP
-----------------------------------------
Certified Public Accountants

April 11, 2006
New York, New York

EXHIBIT 23.2
------------

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements of
Network-1 Security Solutions, Inc. (the "Company") on Form S-8 (File No.
333-64066) and on Form S-2 (File No. 333-126013) of our report dated February
22, 2005, on our audit of the financial statements of the Company as of December
31, 2004 and for the year then ended, included in the Annual Report on Form
10-KSB, for the year ended December 31, 2005.

/s/ Eisner LLP

New York, New York
April 7, 2006

EXHIBIT 31.1
------------

CERTIFICATION OF CHIEF EXECUTIVE OFFICER
PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 (18 U.S.C.SS.1350)

I, Corey M. Horowitz, Chairman and Chief Executive Officer of Network-1 Security
Solutions, Inc. (the "Registrant"), certify that:

1. I have reviewed this report on Form 10-KSB of the Registrant;

2. Based on my knowledge, this report does not contain any untrue statement of
a material fact or omit to state a material fact necessary to make the
statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this
report;

3. Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all material
respects the financial condition, results of operations and cash flows of
the Registrant as of, and for, the periods presented in this report;

4. The Registrant's other certifying officer and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined
in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over
financial reporting (as defined in Exchange Act Rules 13a-15(f) and
15d-15(f) for the Registrant and have:

(a) Designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
Registrant, including its consolidated subsidiaries, is made known to
us by others within those entities, particularly during the period in
which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused
such internal control over financial reporting to be designed under
our supervision, to provide reasonable assurance regarding the
reliability of financial reporting and the preparation of financial
statements for external purposes in accordance with generally accepted
accounting principles;

(c) Evaluated the effectiveness of the Registrant's disclosure controls
and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end
of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the Registrant's internal
control over financial reporting that occurred during the Registrant's
most recent fiscal quarter that has materially affected, or is
reasonably likely to materially affect, the Registrant's internal
control over financial reporting; and

5. The Registrant's other certifying officer and I have disclosed, based on
our most recent evaluation of internal control over financial reporting, to
the Registrant's auditors and the audit committee of the Registrant's board
of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or
operation of internal control over financial reporting which are
reasonably likely to adversely affect the Registrant's ability to
record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other
employees who have a significant role in the Registrant's internal
control over financial reporting.

DATE: APRIL 11, 2006
/s/ COREY M. HOROWITZ
-----------------------
COREY M. HOROWITZ
CHAIRMAN AND CHIEF EXECUTIVE OFFICER

EXHIBIT 32.1
------------

CERTIFICATION OF CHIEF EXECUTIVE OFFICER
PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (18 U.S.C. SS. 1350)

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. ss. 1350),
the undersigned, Corey M. Horowitz, Chief Executive Officer and Chairman of
Network-1 Security Solutions, Inc., a Delaware corporation (the "Company"), does
hereby certify to his knowledge, that:

The Annual Report of Form 10-KSB for the year December 31, 2005 of the Company
(the "Report") fully complies with the requirements of Section 13(a) or 15(d) of
the Securities Act of 1934, and the information contained in the Report fairly
presents, in all material respects, the financial condition and results of
operations of the Company.

/s/ COREY M. HOROWITZ
---------------------------
CHIEF EXECUTIVE OFFICER AND CHAIRMAN
APRIL 11, 2006

EXHIBIT 32.2
------------

CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (18 U.S.C. SS. 1350)

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. ss. 1350),
the undersigned, David C. Kahn, Chief Financial Officer of Network-1 Security
Solutions, Inc., a Delaware corporation (the "Company"), does hereby certify to
his knowledge, that:

The Annual Report of Form 10-KSB for the year ended December 31, 2005 of the
Company (the "Report") fully complies with the requirements of Section 13(a) or
15(d) of the Securities Act of 1934, and the information contained in the Report
fairly presents, in all material respects, the financial condition and results
of operations of the Company.

/s/ DAVID C. KAHN
----------------------
CHIEF FINANCIAL OFFICER
APRIL 11, 2006