Malware purveyors do not target Macs as much as PCs, which are more tempting because there are more of them.
Cluley claims that Mac users too often ignore security, "And that isn't helped when Apple issues an anti-malware security update like this by stealth, rather than informing the public what it has done. You have to wonder whether their keeping quiet about an anti-malware security update like this was for marketing reasons. 'Shh! Don't tell folks that we have to protect against malware on Mac OS X!'"
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