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Mobile Malware Update

Blue Coat Systems has published an interesting report on the state of mobile malware. The good news is that in the words of the report “the devices’ security model” is not yet “broken.” This means that smartphones and tablets are still rarely hijacked by viruses in the way that computers commonly are.

Now for the bad news. On the Android side (though apparently not yet on the iOS side), virus-style hijackings have begun to appear:

Blue Coat WebPulse collaborative defense first detected an Android exploit in real time on February 5, 2009. Since then, Blue Coat Security Labs has observed a steady increase in Android malware. In the July-September 2012 quarter alone, Blue Coat
Security Labs saw a 600 percent increase in Android malware over the same period last year.

But this increase is from a minuscule base, and this type of threat is still relatively minor on mobile devices. Instead the report says, “user behavior becomes the Achilles heel.” The main mobile threats are from what the report calls “mischiefware.”

Mischiefware works by enticing the user into doing something unintentional. The two main categories of Mischiefware are:

  1. Phishing, which tricks users into disclosing personal information that can be used for on-line theft.
  2. Scamming, which tricks users into paying far more than they expect for something – like for-pay text (SMS) messages or in-app purchases. Even legitimate service providers can be guilty of this type of ‘gotcha’ activity, with rapacious international data roaming charges, or punitive overage charges on monthly ‘plans.’

“User behavior becomes the Achilles Heel” is hardly a revelation. A more appropriate phrase would be “User behavior remains the Achilles Heel,” since in this respect the mobile world is no different from the traditional networking world.

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