FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
HOROWITZ COREY M
   2. Issuer Name and Ticker or Trading Symbol
NETWORK 1 SECURITY SOLUTIONS INC [NSSI-OTC] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director __X__ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
CEO and Chairman
(Last)
(First)
(Middle)
C/O CMH CAPITAL MANAGEMENT CORP., 445 PARK AVENUE, SUITE 1018		 3. Date of Earliest Transaction (Month/Day/Year)
06/08/2009
(Street)

NEW YORK, NY 10022		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Option to purchase common stock $ 0.83 06/08/2009   A   750,000   06/30/2009(1) 06/08/2019 Common stock 750,000 (2) 750,000 D  
Option to purchase common stock $ 0.68 06/08/2009   J   400,000   06/08/2009 11/26/2014 Common stock 400,000 (3) 400,000 D  
Option to purchase common stock $ 0.68 06/08/2009   J   10,000   06/08/2009 06/22/2014 Common stock 10,000 (3) 10,000 D  
Option to purchase common stock $ 0.68 06/08/2009   J   7,500   06/08/2009 10/25/2014 Common stock 7,500 (3) 7,500 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
HOROWITZ COREY M
C/O CMH CAPITAL MANAGEMENT CORP.
445 PARK AVENUE, SUITE 1018
NEW YORK, NY 10022		   X   X   CEO and Chairman  

Signatures

 By: /s/ Corey M. Horowitz   06/10/2009
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The shares of common stock underlying the option vest in equal quarterly amounts of 62,500 shares beginning June 30, 2009 through March 31, 2012.
(2) The options were issued pursuant to an Employment Agreement, dated June 8, 2009, between the issuer and the reporting person.
(3) In accordance with the Employment Agreement, dated June 8, 2009, between the Issuer and the Reporting Person, the expiration date of such options was extended for an additional 5 years.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.