Apple Issues Security Update for DigiNotar Certificate Issue
Apple has released Security Update 2011-005 for Mac OS X 10.6 Snow Leopard and 10.7 Lion, to handle security issues raised by hacked certificates issued by Dutch certificate authority DigiNotar.
http://blog.intego.com/2011/09/09/apple-issues-security-update-for-diginotar-certificate-issue/