Google authenticator turn on 2-step verification when you enable 2-step verification (also known as two-factor authentication), you add an extra layer of security to your account. Google authenticator download pending. For example, multi-factor authentication can include first sending the resource owner 102 a one-time-valid time-sensitive passcode to multi-factor authentication devices 114, eg, by email or text message or the authorization system can use an authentication application, eg, google authenticator, that generates a passcode for the resource.
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The big problem with google's app is that you can't backup your data, meaning that, if you lose your device or need to wipe it, you get trapped in a jungle of backup codes and telephone calls this app solves that issue by allowing backup to dropbox and google drive this was a lifesaver for me.
