Apple has just issued a Java security update that will help protect your Mac Computer against the Flashback malware. Check the Apple Pull-down menu for the Java Security Update to get this newly released security patch.
Their software update has the following message attached:
This Java security update removes the most common variants of the Flashback malware. This update also configures the Java web plug-in to disable the automatic execution of Java applets. Users may re-enable automatic execution of Java applets using the Java Preferences application. If the Java web plug-in detects that no applets have been run for an extended period of time it will again disable Java applets.
This update is recommended for all Mac users with Java installed.
For details about this update see: http://support.apple.com/kb/HT5242