The next screen should show a barcode or QR code. 4. Open the Google Authenticator app on your new phone and follow the on-screen instructions. When you are prompted, tap on "Scan a barcode," and ...

Google Authenticator is a particularly popular smartphone application that can be used as a token for many two factor authentication (2FA) systems by generating a time-based one time password ...

Google's two-factor authentication application for mobile devices. After logging into a site that uses Authenticator, users receive a phone message with a unique numeric code for that login session.