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Apple patches its different operating systems

Apple issued Snow Leopard's first security update. In a separate upgrade, Apple patched 33 vulnerabilities in 2007's Leopard, and about half as many in the even older Tiger.

The Snow Leopard 10.6.1 update's security content consisted solely of an upgrade for Adobe's Flash Player, which was bumped to the up-to-date version 10.0.32.18. Mac OS X 10.6.1 packaged nine patches for Flash vulnerabilities, six of which could be considered critical patches.

The Security Update 2009-005 for Leopard and Tiger was more traditional, patching 33 vulnerabilities in the former and 16 in the latter. Of the 33 bugs in Mac OS X 10.5, Leopard, 23 were seen as critical updates; 14 of the 16 flaws in Tiger were pegged the same way.

Mac OS X 10.6.1, and the 2009-005 security update can be downloaded from the Apple site or installed using the Mac's integrated update service.