How to take a backup of Google Authenticator Google Authenticator keeps your account safe with a time-based one-time password (TOTP). It stores the codes in the cloud for easy access.

The Google Authenticator app used to store one-time access codes for account security now supports backups and syncing across devices using a Google Account, Google announced today.

Until now, Google Authenticator had an annoying flaw: Your one-time codes were stored only on your phone, which could cause a tremendous number of problems if you didn't have backup codes.

Google has released an update to its 2FA authenticator app that stores a “one-time code” cloud storage, possibly making it easier for hackers to gain access to their authenticator-linked apps.