Mac software update for malware attack
Apple to Address Mac Defender Malware With Software Update
I posted this on reddit and was sure it wouldn't do well there. Strong Mac bias. Sure enough, 2 down votes and it was off the page in half an hour.
And PC mag reports that the problem is linked to a Russian payment processor.
MacDefender Scareware Linked to Russian Payment Site | News & Opinion | PCMag.com