Facebook is now officially “virusable,” and it isn’t because of the winter chill. Here’s the NY Times article from December 11, 2008, talking about the Trojan worm koobface virus that has infiltrated into Facebook. Of course, you should know that the koobface virus was discovered back in July 2008. Apparently, all social media platforms are now vulnerable.
You should also keep an eye on Facebook’s security page (http://www.facebook.com/security) which warns of the latest threats and provides a number of virus scan options to check if you have been infected).