Your Smartphone Spies On What You Type

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All you have to do is place your phone next to your keyboard to provide a direct channel for anyone to read what you are typing – and it’s all down to the vibration of the keys.

We all do it – place our phones down on the desk next to the keyboard. This might not be such a good idea if you want to keep your work to yourself. 


A team of researchers from MIT and the Georgia Institute of Technology have provided proof of concept for logging keystrokes using nothing but the sensors inside a smartphone – an iPhone 4 to be precise.  

The first interesting finding is that the accelerometer inside an iPhone 3GS wasn’t good enough to pick up the vibrations of the keys but the iPhone 4 produced a clear signal.  This demonstrates not only that sensors are getting better, but the improvement makes a real difference.”


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