According to F-Secure, 58 new Mac threats were found between April and December of last year.

"'That's nothing when compared to Windows malware -- but it's definitely something when compared to the number of Mac threats seen prior to 2011,' F-Secure said in a blog post," writes IT PRO's Tom Brewster.

"Most of the new Mac threats were Trojan-downloaders, with 29 appearing over the nine month period," Brewster writes. "Backdoors came in second on 15, with Trojans and rogue AV taking seven each."

Go to "New Mac malware spikes in 2011" to read the details.

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