EXHIBIT 23.1 ------------ INDEPENDENT AUDITORS' CONSENT The Board of Directors Network-1 Security Solutions, Inc. We consent to the reference to our firm under the caption "Experts" in the Registration Statement on Form SB-2 (SEC Registration No. 333-126013) pertaining to the Network-1 Security Solutions, Inc. and to the incorporation by reference therein of our report dated March 8, 2007 related to the financial statements of Network-1 Security Solutions, Inc. for the year ended December 31, 2006 and December 31, 2005 included in its Annual Report on Form 10-KSB for the year ended December 31, 2006 filed with the Securities and Exchange Commission. /s/ Radin, Glass & Co., LLP --------------------------- Radin, Glass & Co., LLP New York, New York May 25, 2007