The Authenticator app generates multi-factor authentication (MFA) codes that automatically update every 30s, providing an extra layer of security for your accounts. The Google Authenticator app can generate one-time verification codes for sites and apps that support Authenticator app 2-Step Verification. If you set up 2-Step Verification, you can use the Google The verification code can be generated by the Google Authenticator app on your phone, even if you don't have a network or cellular connection. " Sync your Authenticator codes to your Google Account and across your devices. This way, you can always access them even if you lose your phone. Choose Use an app . Tip: If you don't yet have Authenticator installed, select Get it now. If you do have the app already installed, click Set up a different Authenticator app and select Next to reveal the QR code. Open Authenticator on your phone and select the plus icon Select Personal account then tap Scan a QR Code.
