Google 2-Step Verification
Turn on 2-Step Verification
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
Allow 2-Step Verification
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.
Once you have enabled the 2-Step Verification you will have multiple options for how to verify a login is you.
You can use the Google Authenticator app, you can use a Google Prompt, or use text message. We recommend using the Google Authenticator app or a Google Prompt on your mobile device. However, If you do not want to install anything on your device there are backup codes you can print or save and keep in a safe place. See directions below.
Use backup codes if you have no service or do not want to use your device for 2fa
Create & find a set of backup codes
To store your backup codes somewhere safe, you can print a copy of your backup codes.
Go to your Google Account.
On the left, click Security.
Under "Signing in to Google," click 2-Step Verification. You may need to sign in.
Under "Backup codes," click Continue .
From here you can:
Get backup codes: To add backup codes, click Get backup codes.
Create a new set of backup codes and inactivate old ones: To create new codes, click Refresh .
Delete your backup codes: To delete and automatically inactivate your backup codes, click Delete .
Download your backup codes: Click Download Codes .
Print your backup codes: Click Print .
Tips:
If you think your backup codes were stolen or you run out of codes, create a new set. To create a new set of codes, click Refresh .
When you create new codes, your old set automatically becomes inactive.
Find your lost backup code
Search your computer for: "backup-codes-username.txt with your username. For example, if your username is google123, search for: Backup-codes-google123.txt. You'll need the codes downloaded to your computer for this to work.
Sign in with a backup code
Find your backup codes.
Sign in to your Google Account.
Click Try another way.
Click Enter one of your 8-digit backup codes.
Enter one of your unused backup codes.
Tip: As each code can be used only once, you might want to mark the code as used.