You’ll then get a QR code that you’ll then scan on a Google Authenticator (version 5.10+) app on another device—using the “Import accounts” feature from the “Transfer accounts” window.

You can move Google Authenticator to a new phone so that your new device can gain an additional level of security through two-step authentication.

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

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.