X0202 4/A 2004-10-25 2004-10-26 0 0000932064 RSA SECURITY INC/DE/ RSAS 0001206590 SCHNELL SCOTT T C/O RSA SECURITY INC. 174 MIDDLESEX TURNPIKE BEDFORD MA 01730 0 1 0 0 SVP, Sales, Mktg & Prof. Serv. Common Stock 2004-10-25 4 M 0 15143 4.42 A 2097 D Common Stock 2004-10-25 4 M 0 21875 4.04 A 2097 D Common Stock 2004-10-25 4 S 0 23136 19.93 D 2097 D Common Stock 2004-10-25 4 S 0 13882 19.98 D 2097 D Stock Option (Right to Buy) 4.42 2004-10-25 4 M 0 15143 0.00 D 2002-06-18 2009-06-18 Common Stock 15143 36231 D Stock Option (Right to Buy) 4.04 2004-10-25 4 M 0 21875 0.00 D 2003-07-10 2010-07-09 Common Stock 21875 114843 D The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 3, 2004. This stock option vests with respect to 25% of its shares on June 18, 2002 and with respect to the remaining shares in 12 equal installments at the end of each three-month period thereafter. No installment is exercisable after the fourth anniversary of the vesting date of such installment. This stock option vests with respect to 25% of its shares on July 10, 2003 and with respect to the remaining shares in 12 equal installments at the end of each three-month period thereafter. No installment is exercisable after the fourth anniversary of the vesting date of such installment. /s/Kathryn L. Leach (Signed under Power of Attorney dated August 18, 2003) 2004-11-22