This is not actually a very practical attack


In order for this to work, you would have to root the phone, install a custom recovery image, reboot and then have the person with the unlock code enter it before freezing the phone. Oh yeah and you have to pull the battery and re-insert within 0.5 seconds. 

Reshared post from +Anonymous

How to bypass an Android smartphone’s encryption and security: Put it in the freezer | http://bit.ly/11ehCXy     

How to bypass an Android smartphone’s encryption and security: Put it in the freezer | ExtremeTech
Security researchers at the University of Erlangen-Nuremberg in Germany have shown that they can extract photos, surfing history, and contact lists from Android smartphones, even if the phone is locke…

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