Google Authenticator has been around for over a decade, is free, and will work with virtually every service that supports ...

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

Transfer Confirmation: Once all QR codes have been scanned, the Google Authenticator app on your new phone will display a confirmation message, indicating the successful transfer of your accounts.

Google isn’t the only firm offering 2FA sign-in codes to provide backups. Since 2019, Microsoft has allowed people to use a “backup and restore” tool for its Microsoft Authenticator app.

I prefer the option to use an authenticator app rather than receiving codes via text message whenever possible, and so should you. The reason is simple logistics.

Once enabled, an authenticator app can be used to scan the QR code displayed, which confirms the device and enables TOTP.

google-authenticator This will bring up a large QR code in the terminal window. You will most likely need to adjust the size of your window to see the entire code.

If you transfer multiple accounts, your old phone may create more than one QR code. On your new phone's Authenticator app, tap Scan QR code. After you scan your QR codes, you get a confirmation that ...