Along with the 10.7.4 update the new Safari update apparently automatically disables old versions of Flashplayer:
But aside from typical security fixes, Apple has made an interesting move in an effort to further protect users. Through this latest software update, Safari 5.1.7 will now automatically disable older - and typically more vulnerable - versions of the Adobe Flash player.
While many software vendors would prefer OS makers to keep their hands off their software, the move appears to be welcomed by Adobe, which has constantly battled vulnerabilities in its widely installed Flash Player.
http://www.securityweek.com/apple-auto-dis...s-x-1074-updateFor Mac OS X users who run Snow Leopard, a similar update for Snow Leopard 10.6.8 is available as Security Update 2012-0002.