Mac Defender becomes MacGuard, gets sneakier

The Mac scareware that started popping up recently has got a little more insidious. Not quite a full-blown virus, it still requires a clueless or distracted user to install it, but the latest version does not require an administrator password to be entered. It started on May 2 (timeline here), where fake antivirus began to spread though poisoned Google image search results. It was pretty primitive, causing Safari browsers to run a piece Javascript that threw up a fake anti-virus scanner…

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