Mobile phones: security tokens for the next decade?
Mobile phones are becoming increasingly multi-purpose. Not so many years ago, a mobile phone was for making calls and sending text messages; the arrival of smartphones meant they could also be used to play games and browse the web; now we rely on them for almost everything – from navigating cities to making payments in shops.
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Story added 2. August 2012, content source with full text you can find at link above.