Via Lifehacker 

Last week, over 600,000 Macs were infected with a new trojan called the Flashback trojan, and even if you’ve updated your software, you could still be infected. Here’s an app that will check your computer for the trojan, and how to remove it if you find you’re infected.

Gizmodo provided step-by-step instructions based on F-Secure’s write up on the virus, but now there’s an app you can download & install that will check for you. 

Unfortunately, neither the Gizmodo instructions or app will actually remove the virus if you are infected.  You’ll need to follow these removal instructions provided by F-Secure or contact me for help.

Did you check your system and get a clean bill of health?  Great!  Now make sure you have the latest security updates from Apple to prevent infection.  Not sure how to do that?  Here’s how.

Note: this virus isn’t really a trojan, but that’s another topic.

A collegue passed this along…