Remove App Passwords
If you lose a device or stop using an app that was authorized with an App Password, we recommend revoking its App Password so that no one can access your Google Account from that device.
App passwords allow apps or devices that don’t support 2-Step Verification codes to access your Google Account. If you use 2-Step Verification and accessed your Google Account from an app or device like Gmail on your Iphone or Ipad, you probably used an App Password.
To remove an App Password:
- Visit your App Passwords page.
- You’ll see a list of the apps you’ve created App Passwords for. Click Revoke next to the application you no longer want to have access to your account.
Once revoked, that App Password can't be used to access your Google Account again. If you want to start using your account on an app or device again, you'll need to generate a new App Password.