With 2-Step Verification, also called two-factor authentication, you can add an extra layer of security to your account in case your password is stolen. After you set up 2-Step Verification, you can sign in to your account with:
Your password
Your phone
Open your Google Account.
In the navigation panel, select Security.
Under “Signing in to Google,” select 2-Step Verification Get started.
Follow the on-screen steps.
Tip: If you use an account through your work, school, or other group, these steps might not work. If you can’t set up 2-Step Verification, contact your administrator for help.
After you turn on 2-Step Verification, you must complete a second step to verify it’s you when you sign in. To help protect your account, Google will ask that you complete a specific second step.
We recommend you sign in with Google prompts. It's easier to tap a prompt than enter a verification code. Prompts can also help protect against SIM swap and other phone number-based hacks.
Google prompts are push notifications you’ll receive on:
Android phones that are signed in to your Google Account.
iPhone's with the Smart Lock app , the Gmail app , the Google Photos app , the YouTube app , or Google app signed in to your Google Account.
Based on the device and location info in the notification, you can:
Allow the sign in if you requested it by tapping Yes
Block the sign-in if you didn’t request it by tapping No
For added security, Google may ask you for your PIN or other confirmation.
You can set up other verification methods in case you:
Want increased protection against phishing
Can’t get Google prompts
Lose your phone
Skip a second step on trusted devices
If you don't want to provide a second verification step each time you sign in on your computer or phone, check the box next to "Don't ask again on this computer" or "Don't ask again on this device."