Attached files

file filename
EX-32.1 - EXECUTIVE OFFICER CERTIFICATION - NETWORK 1 TECHNOLOGIES INCexh32-1_16629.txt
EX-31.1 - EXECUTIVE OFFICER CERTIFICATION - NETWORK 1 TECHNOLOGIES INCexh31-1_16629.txt
EX-31.2 - EXECUTIVE OFFICER CERTIFICATION - NETWORK 1 TECHNOLOGIES INCexh31-2_16629.txt
10-Q - NETWORK-1 SECURITY SOLUTIONS, INC. - NETWORK 1 TECHNOLOGIES INCform10-q_16629.txt

                                                                    EXHIBIT 32.2
                                                                    ------------

                    CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 (18 U.S.C. SS. 1350)

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S.C. ss. 1350),
the undersigned, David C. Kahn, Chief Financial Officer of Network-1 Security
Solutions, Inc., a Delaware corporation (the "Company"), does hereby certify to
his knowledge, that:

The Quarterly Report of Form 10-Q for the quarter ended September 30, 2009 of
the Company (the "Report") fully complies with the requirements of Section 13(a)
or 15(d) of the Securities Act of 1934, and the information contained in the
Report fairly presents, in all material respects, the financial condition and
results of operations of the Company.

Date: November 12, 2009




                                       /S/ DAVID C. KAHN
                                       -----------------------------------------
                                       DAVID C. KAHN
                                       CHIEF FINANCIAL OFFICE