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Author Topic: How safe is Google Authenticator  (Read 501 times)
Sephera
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December 11, 2013, 11:58:19 AM
 #1

Discuss.
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December 11, 2013, 12:04:15 PM
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Close to 100% safe, unless your phone is lost or stolen or rooted ...
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December 11, 2013, 12:08:12 PM
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The device is safe, it's the person that uses it that blocks the system from being 100% safe
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December 11, 2013, 12:09:26 PM
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Discuss.

Safe for what? Transmission of the shared secret is a known vulnerability, thus its not safe against "shoulder surfing attacks". Also "man in the middle" attacks are possible where someone is intercepting the one time passcode, which leaves a ~ 30 sec. timeframe for an attack.
Also you have to trust Google not to give your shared secret to anyone else.
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