Mountain Lion update for 2012 Macs

OS X 10.8.2 Supplemental Update addresses an issue with Keychain that only affects Mac bought in 2012.

This update is recommended for all Mac systems introduced in 2012. It addresses a security issue with Keychain that affects 2012 Macs.

OS X 10.8.2 Supplemental Update is recommended for all users who bought their Mac in 2012.