In the news release, Network-1 Reports 2010 Year-end Financial Results, issued 01-Apr-2011 by Network-1 Security Solutions, Inc. (OTC Bulletin Board: NSSI) over PR Newswire, we are advised by the company that in the first paragraph, the diluted amount per share should read "$0.67" rather than "$.067" as originally issued inadvertently. The complete, corrected release follows:

Network-1 Reports 2010 Year-end Financial Results

2010 Patent Litigation Settlement Produces 5 New Licensees and Significant Revenue

NEW YORK, April 1, 2011 /PRNewswire/ -- Network-1 Security Solutions, Inc. (OTC Bulletin Board: NSSI), a company specializing in the acquisition, licensing, and protection of intellectual property, today announced financial results for the year ended December 31, 2010.  Network-1 reported net income of $19,236,000 or $0.79 per share ($0.67 per share on a diluted basis) for the year ended December 31, 2010 as compared to a net loss of ($2,578,000) or $(0.11) for the year ended December 31, 2009.  Included in the results for 2010 and 2009 are non-cash compensation expenses of $402,000 and $901,000, respectively.

"It was a tremendous year for Network-1," commented Corey M. Horowitz, Chairman and CEO of Network-1.  "We successfully resolved our second litigation over our Remote Power Patent and now have 11 licensees to this important technology, including some of the largest technology companies in the world".  "We look forward now to licensing our technology to other vendors of Power over Ethernet equipment and, if necessary, enforcing our IP where appropriate.  As importantly, we are extremely well positioned to pursue new opportunities in the intellectual property monetization arena."

The following are financial and strategic highlights:

    --  Revenues: Network-1 had revenues of $33,037,000 for the year December
        31, 2010 as compared with $811,000 of revenues for the year ended
        December 31, 2009. Revenues for 2010 include $32,320,000 from the
        settlement of its patent litigation in July 2010.

    --  Patent Litigation Settlement: On July 19, 2010, Network-1 announced that
        it agreed to settle its patent litigation against Adtran, Inc., Cisco
        Systems, Inc. and Cisco-Linksys, LLC, (collectively, "Cisco"), Enterasys
        Networks, Inc., Extreme Networks, Inc., Foundry Networks, Inc., and 3Com
        Corporation, Inc., pending in the United States District Court for the
        Eastern District of Texas, Tyler Division, for infringement Network-1's
        Remote Power Patent, U.S. Patent No. 6,218,930 ("Remote Power Patent").
        As part of the settlement, Adtran, Cisco, Enterasys, Extreme Networks
        and Foundry Networks each entered into a settlement agreement with
        Network-1 and agreed to enter into non-exclusive licenses for the Remote
        Power Patent (the "Licensed Defendants"). Under the terms of the
        licenses, the Licensed Defendants paid to Network-1 an aggregate upfront
        payment of approximately $31 million and also agreed to license the
        Remote Power Patent for its full term, which expires in March 2020.

Additional highlights of the Patent Litigation Settlement include the following:

    --  Cisco agreed to pay royalties (beginning in 2011) based on its sales of
        Power over Ethernet ("PoE") products up to maximum royalty payments per
        year of $8 million through 2015 and $9 million per year thereafter for
        the remaining term of the Remote Power Patent. The aforementioned
        royalty payments are subject to certain conditions including the
        continued validity of Network-1's Remote Power Patent, and the actual
        amounts received may be less than the caps stated above.

    --  The settlement with 3Com provides for a dismissal of the litigation
        without prejudice. The release covers sales of certain 3Com Power over
        Ethernet products sold through the date of the settlement.

    --  Network-1 and 3Com's parent, Hewlett Packard Corporation, agreed that
        the dismissal does not apply to Hewlett-Packard Power over Ethernet
        products and that any future litigation involving Network-1 and Hewlett
        Packard concerning the Remote Power Patent will be in the United States
        District Court for the Eastern District of Texas.

    --  For additional details of the settlement, please see Network-1's Current
        Report on Form 8-K filed with the Securities and Exchange Commission on
        July 20, 2010.

The Remote Power Patent relates to, among other things, the delivery of power over Ethernet cables in order to remotely power network connected devices including, among others, wireless switches, wireless access points, RFID card readers, VOIP telephones and network cameras. In June 2003, the Institute of Electrical and Electronic Engineers (IEEE) approved the IEEE 802.3af Power over Ethernet ("PoE") standard which has led to the rapid adoption of PoE.

Consistent with its activities over the past several years, Network-1 plans on continuing its licensing activities relating to the Remote Power Patent.  Such licensing activities may require the expenditure of cash to support the licensing and enforcement of the Remote Power Patent.  In addition, Network-1 may acquire additional intellectual property assets in the future to develop, commercialize, license or otherwise monetize such intellectual property.  In this regard, Network-1 continually reviews opportunities to acquire or license additional intellectual property for the purpose of pursuing licensing opportunities related to its existing intellectual property portfolio or otherwise.  Network-1 may also enter into strategic relationships with third parties to develop, commercialize, license or otherwise monetize their intellectual property.  The form of such relationships may vary depending upon the opportunity and may include, among other things, a strategic investment in such third party or the formation of a joint venture for the purpose of monetizing such third party's intellectual property assets.

"We continue to be presented with exciting opportunities in the IP monetization space," said Mr. Horowitz.  "Our knowledge, discipline and experience combined with our resources opens many doors in this fast growing business.  More and more companies are reaching out to monetize their intellectual property portfolios and this has created some large and well-publicized transactions," continued Mr. Horowitz.

ABOUT NETWORK-1 SECURITY SOLUTIONS, INC.

Network-1 Security Solutions, Inc. is engaged in the acquisition, development, licensing and protection of its intellectual property and proprietary technologies. It currently owns six patents covering various telecommunications and data networking technologies and is currently focusing its licensing efforts on its Remote Power Patent (U.S. Patent No. 6,218,930) covering the remote delivery of power over Ethernet networks.  The Remote Power Patent was granted by the U.S. Office of Patents and Trademarks on April 21, 2001 and expires on March 11, 2020.

This release contains forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These statements address future events and conditions concerning Network-1's business plans. Such statements are subject to a number of risk factors and uncertainties as disclosed in the Network-1's Annual Report on Form 10-K for the year ended December 31, 2010 including, among others, the ability of Network-1 to enter into additional  license agreements with third parties for its intellectual property or the intellectual property of its strategic partners, the ability of Network-1 to receive significant royalties from its existing license agreements, the uncertainty of patent litigation, Network-1's ability to achieve revenues and profits from its intellectual property or the intellectual property of its strategic partners, Network-1's ability to execute its strategy to acquire additional patents or enter into strategic relationships with third parties to license or otherwise monetize their intellectual property, the continued viability of the PoE market, future economic conditions and technology changes and legislative, regulatory and competitive developments. Except as otherwise required to be disclosed in periodic reports, Network-1 expressly disclaims any future obligation or undertaking to update or revise any forward-looking statement contained herein.

The condensed statements of operations and condensed balance sheet are attached.

Statements of Operations

                                           Years Ended
                                           December 31,

                                           2010         2009

ROYALTY REVENUE                            $33,037,000  $811,000



COST OF REVENUE                            9,595,000    76,000

GROSS PROFIT                               23,442,000   735,000



OPERATING EXPENSES:

General and administrative                 3,771,000    $ 2,413,000

 Non-cash compensation                     402,000      901,000



TOTAL OPERATING EXPENSES                   4,173,000    3,314,000



OPERATING INCOME (LOSS)                    19,269,000   (2,579,000)



OTHER INCOME (EXPENSES):

Interest income, net                       41,000       1,000



INCOME (LOSS) BEFORE INCOME TAXES          $19,310,000  (2,578,000)



INCOME TAXES                               74,000       —



NET INCOME (LOSS)                          $ 19,236,000 $ (2,578,000)



Net Income (Loss) Per Share

Basic                                      $ 0.79       $ (0.11)

Diluted                                    $ 0.67       $ (0.11)



Weighted average common shares outstanding

Basic                                      24,422,567   24,135,557

Diluted                                    28,619,982   24,135,557

Condensed Balance Sheet as of December 31, 2010



Cash and cash equivalents   $ 21,348,000



Total current assets        $ 22,776,000



Total assets                $ 22,865,000



Total current liabilities   $ 2,170,000



Total long term liabilities $ 0



Total stockholders' equity  $ 20,695,000

Contacts:
Network-1 Security Solutions, Inc.
Corey M. Horowitz, Chairman and CEO
212-829-5770

SOURCE Network-1 Security Solutions, Inc.