EXHIBIT
23.1
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 S-8 and the reoffer prospectus pertaining to
the
Network-1 Security Solutions, Inc. and to the incorporation by reference therein
of our report dated March 13, 2006 related to the financial statements of
Network-1 Security Solutions, Inc. for the year ended December 31, 2005
included in its Annual Report on Form 10-KSB for the year ended December 31,
2005 filed with the Securities and Exchange Commission.
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/s/ Radin,
Glass & Co., LLP
Radin,
Glass & Co., LLP
New
York, New York
February
7, 2007
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