Remember MacDefender? It was the first really big piece of malware to hit the Mac operating system, and was a huge problem for Apple’s tech support teams… such a huge problem, in fact, that Apple introduced a self-updating anti-malware database into OS X, which basically killed MacDefender and its variants off.
MacDefender worked by tricking users into believing that they’d been infected by malware (which they in fact had — MacDefender’s own — even though it was trivial to remove the infection) then tried to bilk them out of their credit card numbers for bogus anti-malware software.
MacDefender died off pretty quickly after Apple updated Snow Leopard to fight it, but the perps behind the software went unidentified. Now, it looks like they’ve been caught, raided and busted.