NETWORK-1 TECHNOLOGIES, INC. — Director's Dealing 2007

Mar 2, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NETWORK 1 SECURITY SOLUTIONS INC (NSSI-OTC)
CIK: 0001065078
Period of Report: 2007-02-28

Reporting Person: HOROWITZ COREY M (Director, CEO and Chairman, 10% Owner)
Reporting Person: CMH CAPITAL MANAGEMENT CORP (10% Owner)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-02-28	Option to purchase common stock	$1.46	A	375000	Acquired	2012-02-28	Common stock (375000)	Direct
2007-02-28	Warrant to purchase common stock	$1.48	J	250000	Acquired	2010-10-08	Common stock (250000)	Indirect
2007-02-28	Option to purchase common stock	$1.20	J	750000	Acquired	2010-04-18	Common stock (750000)	Indirect
2007-02-28	Option to purchase common stock	$0.23	J	1084782	Acquired	2011-12-22	Common stock (1084782)	Direct
2007-02-28	Option to purchase common stock	$0.13	J	515218	Acquired	2011-12-22	Common stock (515218)	Direct
2007-02-28	Option to purchase common stock	$6.00	J	20000	Acquired	2011-10-20	Common stock (20000)	Direct

Footnotes

F1: The shares of common stock underlying the option vest in equal quarterly amounts of 93,750 shares beginning March 31, 2007
through December 31, 2007.

F2: The options were issued pursuant to an Employment Agreement, Dated February 28, 2007, between the issuer and the reporting
person.

F3: In accordance with the Employment Agreement, dated February 28, 2007, between the Issuer and the Reporting Person, the
expiration date of such options or warrants was extended for an additional 3 years.

F4: The options or warrants are owned by CMH Capital Management Corp., an entity in which the reporting person is the sole
officer, director and stockholder.