How to use your phone as a two-factor authentication security key
If you want to verify your Google login and make it harder to access by anyone but yourself (always a good idea), one way is to use your iPhone or Android smartphone as a physical security key. While you can set up a third-party 2FA app such as Authy or even use Google’s own Authenticator, these require that you enter both your password and a code generated by the app. Google’s built-in security allows you to access your account by just hitting “Yes” or pressing your volume button after a pop-up appears on your phone. You can also use your phone as a secondary security key.
Use your phone to sign in
To set this up, your computer should be running a current version of Windows 10, iOS, macOS, or Chrome OS. Before you start, make sure that…
