A new report suggests this may be happening now. ZDNet blogger Ed Bott reported Wednesday that a (among various aliases) is afflicting more Mac users than previously thought.
In the of two Wednesday posts, Bott includes a transcript of a phone interview he conducted with an unnamed AppleCare support representative, who claims that "many, many people" are falling for the MAC Defender attack.
AppleCare's call volume is four to five times higher than normal, the source says, and the majority of the calls are related to the malware outbreak.
In a post, Bott posts several MAC Defender-related user complaints that he culled from the Apple support forums yesterday.
"I found more than 200 separate discussion threads, many of them from people who have been tricked into installing this software and are desperately trying to remove it," writes Bott.