I couldn't find a thread about it, and as many people falsely believe that Mac computers don't get viruses, it's worth mentioning:
Its report claims that about 600,000 Macs have installed the malware - potentially allowing them to be hijacked and used as a "botnet".
Apple has released a security update, but users who have not installed the patch remain exposed.Apple released its own "security update" on Wednesday - more than eight weeks later. It can be triggered by clicking on the software update icon in the computer's system preferences panel.
The security firm F-Secure has also posted detailed instructions about how to confirm if a machine is infected and how to remove the Trojan.