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This step-by-step guide shows you how to turn on two-factor authentication (2FA) on your computer and mobile devices for Yahoo

Setting up 2FA for Yahoo! on your computer

Once you have enabled two-step verification for your Yahoo! account, you will require a code (in addition to your password) any time a login attempt is made from a new/unknown device or web browser. Yahoo! will send you this code via a text message or phone call as per your selection.


1.        Sign in to your Yahoo! account

2-factor authentication - Yahoo - step 1

2.        Click your user icon in the upper-right hand corner then click Settings

2-factor authentication - Yahoo - step 2

3.        Click Account security. Confirm your sign-in details

2-factor authentication - Yahoo - step 3

4.        Beside Two-step verification, click the Toggle button to turn it on

2-factor authentication - Yahoo - step 4

5.        Enter your mobile number

2-factor authentication - Yahoo - step 5

 6.        Click Send SMS or Call me to get a verification code

2-factor authentication - Yahoo - step 6

7.        Enter the verification code, then click Verify

2-factor authentication - Yahoo - step 7

8.        If you access Yahoo! in third-party apps, click Create app passwords or click Skip for now

2-factor authentication - Yahoo - step 8

Turning on 2FA for Yahoo! on your mobile devices

NOTE: If you have turned on 2FA for Yahoo! using your desktop computer, you may still need to turn it on for your mobile devices.

Once you have enabled two-step verification for your Yahoo! account, you will require a code (in addition to your password) any time a login attempt is made from a new/unknown device or web browser. Yahoo! will send you this code via a text or phone call.


1. Open the Yahoo Mail app from your Home screen

2-factor authentication - Yahoo mobile - step 1

2. Tap User Icon, then tap Settings, then tap Manage Accounts

2-factor authentication - Yahoo mobile - step 2

3. Tap Account Info, then tap Security settings

2-factor authentication - Yahoo mobile - step 3

4. Unlock your phone using your credentials

2-factor authentication - Yahoo mobile - step 4

5. Tap button on Two-step verification section

2-factor authentication - Yahoo mobile - step 5

6. Enter your mobile to receive the verification code via SMS or phone call

Some third-party email apps (that do not use the Yahoo! branded sign-in page) require you to enter a single password for login credentials. To access your Yahoo! account on these apps, you’ll need to generate and use an app password. An app password is a long, randomly generated code that gives a non-Yahoo! app permission to access your Yahoo! account. You’ll only need to provide this code once to sign in to your third-party email app.

2-factor authentication - Yahoo mobile - step 6

Third party 2FA apps

If you would like to use a third party 2FA app, there are many available. Most are free of charge and effective with Gmail. The recommendation is to do your research and find a solution that’s right for you. Below are some examples of 2FA apps currently available.

Google Authenticator Application

Google Authenticator

Lastpass Authenticator Application

LastPass Authenticator

Microsoft Authenticator Application

Microsoft Authenticator

Authy Authenticator Application

Authy Authenticator