Just a few hours before Microsoft will release Updates for its software, Apple released version 10.6.2 of Mac OS X and Security Update 2009-006, respectively. This Update fixes numerous of security issues within the Mac operating system.
You can download the Update from Apples web site or just use the updater of Mac OS X. As some of the vulnerabilities allow for remote code injection and execution, the Update is recommended.
The Apple platforms will soon be targeted with more energy by cyber criminals: Just recently hackers attacked for example Apples iPhones which are jailbreak’ed – they broke into the phone through the standard password for the SSH installation. So at least change the default passwords if you used jailbreak.