[iMore.com]

Apple has updated its malware definitions for OS X so as to defend Macs against a botnet that allowed a piece of malware called Mac.BackDoor.iWorm to install on systems. iWorm had made its way onto 17,000 machines by the time it was disclosed last week. Once on a user's system, the malware could install other pieces of malware, in addition to stealing sensitive data. Apple has now taken steps to protect its users from iWorm, according to MacRumors:

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