Mac Defender

“Many Mac users think their Mac is impervious to viruses and think this is a real warning from Apple,” the anonymous person reportedly said. “I really wish I could say not many people will fall for this, but in this last week, we have had nothing but Mac Defender and similar calls.”

Slash Lane on Apple Insider quoting an anonymous person supposedly working at Apple Care support about the impact of the TROJAN MacDefender.

Seeing that victims have to actively give consent that the trojan can intrude their computer it seems obvious that large parts of the Mac user community are in for a steep learning curve.