All you have to do is scan a QR code for the service you want to turn 2FA on for, and the app will generate a new log-in code around every 30 seconds. This week, Google has given its 2FA app ...

Google Authenticator now syncs one-time codes with your account, so you're not stuck if you lose your device.

First, turn on two-factor authentication for the account. You'll get a QR code or setup key. Next, open the Google Authenticator app and tap the plus sign. Record the 2FA code/key. Whenever you're ...

On your new phone's Authenticator app, tap Scan QR code. After you scan your QR codes, you get a confirmation that your Google Authenticator accounts were transferred.

Google Authenticator was among the earliest mass-market TOTP apps, having debuted in 2010, but for its first few years it did not support phone-to-phone transfer of saved codes.

Finally, Google has updated its useful Authenticator app on iOS to allow users to export their myriad of tokens and import them on another iPhone directly within the app. This has been my biggest ...