OS X Security Update 2015-002 for 10.8, 10.9, 10.10

Apple has today released significant security updates to fix vulnerabilities in OS X Moutain Lion 10.8.5, Mavericks 10.9.5, Yosemite 10.10.2.

This includes patches to the Kernel, iCloud Keychain, and SSL/TLS connections, and is well worth installing as soon as you can get the Mac App Store to deliver it.