12/02/2004: "Security Update 2004-12-02 (12.7MB)"

Lock and load (and reboot):

Security Update 2004-12-02 delivers a number of security enhancements and is recommended for all Macintosh users. This update includes the following components:
Apache
AppKit
HIToolbox
Kerberos
Postfix
PSNormalizer
Safari
Terminal
For detailed information on this Update, please visit this website:
http://www.info.apple.com/kbnum/n61798