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                                  UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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                                    Form 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


       Date of Report (Date of earliest event reported): September 8, 2006
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                       Network-1 Security Solutions, Inc.
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             (Exact name of registrant as specified in its charter)


          Delaware                     1-14896                  11-3027591
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(State or other jurisdiction        (Commission               (IRS Employer
     of incorporation)              File Number)            Identification No.)


              445 Park Avenue, Suite 1028, New York, New York 10022
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                    (Address of principal executive offices)


Registrant's telephone number, including area code:  (212) 829-5700


                                       N/A
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         (Former name or former address, if changed since last report.)





     Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (SEE General Instruction A.2. below):

     [_]  Written communications pursuant to Rule 425 under the Securities Act
          (17 CFR 230.425)

     [_]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17
          CFR 240.14a-12)

     [_]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
          Exchange Act (17 CFR 240.14d-2(b))

     [_]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
          Exchange Act (17 CFR 240.13e-4(c))

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ITEM 8.01    OTHER EVENTS

             On September 12, 2006, the Company issued a press release
announcing that it had received $635,000 of proceeds from the exercise of common
stock warrants held by FalconStor Software, Inc. A copy of the press release is
furnished herewith as Exhibit 99.1.





ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

Exhibit
Number       Description
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99.1         Press Release, dated September 12, 2006

























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                                    SIGNATURE
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             Pursuant to the requirements of the Securities Exchange Act of
1934, the Registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized.



                                   NETWORK-1 SECURITY SOLUTIONS, INC.



Dated:  September 14, 2006         By: /s/ Corey M. Horowitz
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                                       Name:  Corey M. Horowitz
                                       Title: Chairman & Chief Executive Officer





























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