Some experts who
focused on electronic device security have devised an application to mark the
position of the shadows of the password a user tapped onto a smart phone or a
tablet PC. They then can use the application's built-in algorithms to translate
the shadows into concrete area keys, and successfully log in the device system.
Researchers have carried out experiments on Apple iPad, Google Nexus 7 and the
iPhone 5. No single device has escaped.
Xinwen Fu, a Computer
Science Professor in University of Massachusetts, said the password-cracking
application is compatible with many devices, including Google glasses, mobile
phones with video-capturing function, and laptops with built-in cameras.
Moreover, the application can crack passwords within 140 feet distance. Even if
you may be cautious when someone approaches you with cameras recording you when
you tap in your password, wearable devices, such as Google glass, make people
vulnerable to resist this kind of password theft.
The most important
factor of successfully cracking the password relies on the shooting angle. As
long as your fingers can be video-taped, you are facing the risk of revealing
your password.
CNN has conducted a
similar test in its café. Sitting at a distance of 8.5 feet away from the iPad,
the security researcher wearing Google glasses was able to correctly identify
the login password when he captured the user's login process for three times.
Interestingly, this
research result will be demonstrated on Black Hat Security Conference this year soon in Las Vegas.
http://money.cnn.com/2014/07/07/technology/security/google-glass-password-hack/
https://www.blackhat.com/us-14/
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