NOTE A – NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

[1] BASIS OF PRESENTATION:

The accompanying condensed financial statements as of March 31, 2013 and for the three month periods ended March 31, 2013 and March 31, 2012 are unaudited, but, in the opinion of the management of Network-1 Security Solutions, Inc. (the "Company"), contain all adjustments consisting only of normal recurring items which the Company considers necessary for the fair presentation of the Company's financial position as of March 31, 2013, and the results of its operations and comprehensive income and its cash flows for the three month periods ended March 31, 2013 and March 31, 2012. The condensed financial statements included herein have been prepared in accordance with the accounting principles generally accepted in the United States of America for interim financial information and the instructions to Form 10-Q. Accordingly, certain information and footnote disclosures normally included in the financial statements prepared in accordance with accounting principles generally accepted in the United States of America have been omitted pursuant to such rules and regulations, although management believes that the disclosures are adequate to make the information presented not misleading. These financial statements should be read in conjunction with the audited financial statements for the year ended December 31, 2012 included in the Company's Annual Report on Form 10-K filed with the Securities and Exchange Commission. The results of operations for the three months ended March 31, 2013 are not necessarily indicative of the results of operations to be expected for the full year.

[2] BUSINESS:

(a) The Company is engaged in the acquisition, development, licensing and protection of its intellectual property. The Company presently owns ten (10) patents that relate to various telecommunications, data networking and Internet technologies as well as the identification of media content and include, among other things, patents covering (i) the delivery of power over Ethernet ("PoE") cables for the purpose of remotely powering network devices, such as wireless access ports, IP phones and network based cameras, over PoE networks, (ii) enabling technology for identifying media content on the Internet such as audio and video (see Note B[2]) and (iii) systems and methods of transmission of audio, video and data over computer and telephony networks. The Company’s strategy is to pursue licensing and strategic alliances with companies in industries that manufacture and sell products that make use of the technologies underlying the Company’s intellectual property as well as with other users of the technologies who benefit directly from the technologies including corporate, educational and governmental entities. To date, the Company’s licensing efforts have focused on its remote power patent (U.S. Patent No. 6,218,930) covering the control of power delivery over Ethernet cables (the “Remote Power Patent”). As of March 31, 2013, the Company has entered into sixteen (16) license agreements with respect to its Remote Power Patent. The Company’s current strategy includes continuing to pursue licensing opportunities for its Remote Power Patent from vendors of PoE equipment in order to resolve possible infringement of its Remote Power Patent by such vendors. In addition, the Company seeks to acquire, develop and license additional intellectual property assets to develop, commercialize, license or otherwise monetize such intellectual property. The Company continually reviews opportunities to acquire or license additional intellectual property. The Company may also enter into strategic relationships with third parties to develop, commercialize, license or otherwise monetize their intellectual property.

(b) As reflected in the accompanying financial statements, the Company had revenue of $4,064,000 and $4,425,000 for the three month period ended March 31, 2013 and March 31, 2012, respectively. The Company has been dependent upon royalty revenue from license of its Remote Power Patent to fund its operations. The Company had cash and cash equivalents of approximately $19,811,000 as of March 31, 2013.

[3] STOCK-BASED COMPENSATION:

During the three month period ended March 31, 2013, the Company issued stock options to each of its four (4) non-management directors to purchase 25,000 shares of common stock at an exercise price of $1.19 per share. Such options vest over a one year period in equal quarterly amounts, subject to continued service on the Board. The Company recorded $12,000 in non-cash compensation in connection with the vested portion of these options for the three month period ended March 31, 2013.

During the three month period ended March 31, 2012, the Company issued to its then three (3) non-management directors stock options to purchase an aggregate of 125,000 shares of common stock at exercise prices of $1.21 and $1.32 per share. Such options vest over a one year period in equal quarterly amounts, subject to continued service on the Board. The Company recorded $15,000 in non-cash compensation in connection with the vested portion of these options for the three months ended March 31, 2013.

During the three month periods ended March 31, 2013 and 2012, the Company recorded non-cash compensation expense of $27,000 and $37,000 for the vested portion of options to purchase 500,000 and 750,000 shares issued to the Company’s Chairman and Chief Executive Officer in November 2012 and June 2009, respectively. In addition, during the three month periods ended March 31, 2013 and March 31, 2012, the Company recorded non-cash compensation expense of $73,000 and $54,000, respectively, for the vested portion of options granted to its Chief Financial Officer, directors and consultants in prior years.

During the three month period ended March 31, 2012, the Company's Chairman and Chief Executive Officer exercised options and warrants to purchase an aggregate of 1,890,361 shares of the Company's common stock at an exercise price of $0.68 per share. All such options were exercised on a cashless basis by delivery of 951,090 shares of common stock and 273,477 shares of common stock were delivered with an aggregate value of $379,595 to fund payroll withholding taxes on exercise, resulting in aggregate net shares of 665,794 issued to the Chairman and Chief Executive Officer with respect to such option exercises.

On February 3, 2011, the Company issued to its Chief Financial Officer a five-year option to purchase 100,000 shares of common stock at $1.59 per share, which option vested 50,000 shares on the date of grant and 50,000 shares on February 3, 2012. The non-cash compensation charges incurred with respect to such option grant was $32,000 for the three month period ended March 31, 2012 (See Note C[3]).

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

[4] REVENUE RECOGNITION:

The Company recognizes revenue received from the licensing of its intellectual property in accordance with Staff Accounting Bulletin No. 104, "Revenue Recognition" ("SAB No. 104") and related authoritative pronouncements. 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. One licensee (Cisco Systems) constituted approximately 86% of the Company’s revenue for the three month period ended March 31, 2013.

[5] INCOME TAXES:

At March 31, 2013, the Company had net operating loss carryforwards (NOLs) totaling approximately $23,087,000 expiring through 2029, with a future tax benefit of approximately $7,850,000. During the second quarter of 2011, as a result of the Company’s financial results and projected future operating results, management determined that a portion of the NOL was more likely than not to be utilized resulting in the recording of a one-time non-cash, income tax benefit of $7,000,000 (income) or $0.29 per share (basic) for the three months ended June 30, 2011. At March 31, 2012 and March 31, 2013, $6,483,000 and $5,579,000, respectively, were recorded as a deferred tax asset on the Company’s balance sheet. During the three month period ended March 31, 2013 as a result of income (before taxes) for the quarterly period of $2,055,000, $663,000 was recorded as income tax expense and the deferred tax asset was reduced by $615,000 to $5,579,000. To the extent that the Company earns income in the future, it will report income tax expense and such expense attributable to federal income taxes will reduce the recorded income tax benefit asset reflected on the balance sheet. Management will continue to evaluate the recoverability of the NOL and adjust the deferred tax asset appropriately. Utilization of NOL credit carryforwards can be subject to a substantial annual limitation due to ownership change limitations that could occur in the future, as required by Section 382 of the Internal Revenue Code of 1986, as amended, as well as similar state provisions.

[6] EARNINGS (LOSS) PER SHARE:

Basic Earnings (loss) per share is calculated by dividing the net income (loss) by the weighted average number of outstanding common shares during the period. Diluted per share data includes the dilutive effects of options, warrants and convertible securities. Potential shares of 5,765,000 and 8,014,336 at March 31, 2013 and March 31, 2012, respectively, consisted of options and warrants. Computations of basic and diluted weighted average common shares outstanding are as follows:

[7] CASH EQUIVALENTS:

The Company places cash investments in high quality financial institutions insured by the Federal Deposit Insurance Corporation ("FDIC"). At March 31, 2013, the Company maintained cash balance of $19,561,000 in excess of FDIC limits.

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

Cash and cash equivalents as of March 31, 2013 and December 31, 2012 are composed of: 

[8] MARKETABLE SECURITIES

Marketable securities are classified as available-for-sale and are recorded as fair market value. Unrealized gain and losses are reported as other comprehensive income. Realized gains and losses are included in income in the period they are realized. The Company's

marketable securities consist of a corporate bond (face value $500,000) with a 5% coupon and a maturity date of June 2015.