Aug 12, 2010
Beware of the tell-tale smudge
University of Pennsylvania researchers say they can take a picture of the screen of a touch screen phone, enhance the contrast on the smudge marks,…
University of Pennsylvania researchers say they can take a picture of the screen of a touch screen phone, enhance the contrast on the smudge marks, and detect the password 92% of the time. Their advice: clean your phone. Which is kind of good advice anyway.
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