ISC highlights recent security update and the creation of a removal tool for the Flashback Trojan attacks circulating in-the-wild. 

Apple Security – Flashback Removal Tool

QUOTE:  Earlier in the week Apple released a Java update which included software to remove the Flashback Trojan from OS X Lion machines running Java.  The Flashback Trojan removal tool is now also available for OS X Lion machines not running Java. This Flashback malware removal tool is available through the OS X Software Update tool, or from Apple’s download site