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

1. Name and Address of Reporting Person* O CONNOR KEVIN J (Last) (First) (Middle) 6303 BARFIELD ROAD (Street) ATLANTA GA 30328 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol INTERNET SECURITY SYSTEMS INC/GA [ ISSX ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 10/20/2006
	4. If Amendment, Date of 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

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
Common Shares(1)	10/20/2006		D		42,266	D	$28(1)	0	D

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 Securities Underlying Derivative Security (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: 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
Non-Qualified Stock Opiotn (right to buy)(2)	$3.5	10/20/2006		D			40,000	12/08/1998	12/07/2007	Common Shares	40,000	$0(2)	0	D
Non-Qualified Stock Option (righ to buy)(3)	$21.5625	10/20/2006		D			5,000	05/25/1999	05/24/2009	Commoon Shares	5,000	$0(3)	0	D
Non-Qualified Stock Option (right to buy)(4)	$85.625	10/20/2006		D			2,500	05/24/2001	05/23/2010	Common Shares	2,500	$0(4)	0	D
Non-Qualified Stock Option (righ to buy)(4)	$55.8	10/20/2006		D			2,500	05/23/2002	05/22/2011	Common Shares	2,500	$0(4)	0	D
Non-Qualified Stock Opiton (right to buy)(5)	$16.1	10/20/2006		D			10,000	05/29/2003	05/28/2012	Common Shares	10,000	$0(5)	0	D
Non-Qualified Stock Option (right to buy)(5)	$16.01	10/20/2006		D			10,000	05/28/2004	05/27/2013	Common Shares	10,000	$0(5)	0	D
Non-Qualified Stock Option (right to buy)(5)	$15.14	10/20/2006		D			10,000	05/24/2005	05/23/2014	Common Shares	10,000	$0(5)	0	D
Non-Qualified Stock Option (righ to buy)(6)	$21.58	10/20/2006		D			10,000	08/24/2005	05/23/2014	Common Shares	10,000	$0(6)	0	D
NOn-Qualified Stock Option (righ to buy)(6)	$20.745	10/20/2006		D			10,000	08/26/2006	05/25/2013	Comon Shares	10,000	$0(6)	0	D

Explanation of Responses:

1. Converted pursuant to the Agreement and Plan of Merger (the Merger Agreement), dated as of August 23, 2006, among International Business Machines Corporation (IBM), Aegis Acquisition Corp. and Internet Security Systems, Inc. (ISS) in exchange for the right to receive $28.00 in cash per share.

2. Converted pursuant to the Merger Agreement into the right to receive an amount in cash per share subject to the option equal to the difference between the per share exercise price and $28.00. Original vesting provided a series of four equal annual installments beginning on 12-8-1998.

3. Converted pursuant to the Merger Agreement into the right to receive an amount in cash per share subject to the option equal to the difference between the per share exercise price and $28.00. Original vesting provides fully vested as of the grant date.

4. Cancelled pursuant to the Merger Agreement. Original vesting provided fully vested one year from grant date.

5. Converted pursuant to the Merger Agreement into the right to receive an amount in cash per share subject to the option equal to the difference between the per share exercise price and $28.00. Original vesting provides full vesting one year from grant date.

6. Converted pursuant to the Merger Agreement into the right to receive an amount in cash per share subject to the option equal to the difference between the per share exercise price and $28.00. Original vesting provides vesting over two years, 12.5% quarterly beginning three months from grant

	Sean Bowen P-O-A Kevin O'Connor	11/03/2006
	** Signature of Reporting Person	Date
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