Apple has released Mac OS X 10.6.8 which is recommended for all the users who are running Mac OS X Snow Leopard.The update fixes bugs including Mac Defender malware along with other security fixes.
Mac OS X 10.6.8 includes:Enhance the Mac App Store to get your Mac ready to upgrade to Mac OS X Lion
Resolve an issue that may cause Preview to unexpectedly quit
Improve support for IPv6
Improve VPN reliability
Identify and remove known variants of Mac Defender
You can download the update by choosing Apple Menu from your Mac or from direct links below.
Direct Download Links for Mac OS X 10.6.8 -
10.6.8 Update :
http://support.apple.com/kb/DL140010.6.8 Update Combo :
http://support.apple.com/kb/DL1399Server v10.6.8 Update
http://support.apple.com/kb/DL1401Server v10.6.8 Update Combo
http://support.apple.com/kb/DL1402
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Apple releases Mac OS X 10.6.8 update for Snow Leopard Users