When you sign in to your Google Account, you can tap a notification on your phone to confirm it’s you.
You can use Google prompts to sign in:
- With your phone instead of a password
- In addition to your password when you turn on 2-Step Verification
- When you try to recover your account
Even if you haven’t turned either of these settings on, Google might also ask you to tap a notification to help confirm it’s you signing in.