What is two-factor authentication?
Two-factor authentication (2FA) is a procedure that typically requires a combination of something a user knows (pin, secret question) and something a user has (cards, fingerprint) in order to access a program or operating system.
Why is it important to turn it on?
Using 2FA to access your favourite programs provides enhanced security to traditional usernames and passwords. The multiple layers of authentication increase confidence that the user requesting access is actually who they claim to be, specifically you.
Where do I turn it on?
Where to turn on 2FA within a program depends on each program. However, the steps are universally simple and somewhat similar. Icons and language may differ slightly depending on the program, or device you are using.
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. Click your user icon in the upper-right hand corner then click Settings
3. Click Account security. Confirm your sign-in details
4. Beside Two-step verification, click the Toggle button to turn it on
5. Enter your mobile number
6. Click Send SMS or Call me to get a verification code
7. Enter the verification code, then click Verify
8. If you access Yahoo! in third-party apps, click Create app passwords or click Skip for now
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. Tap User Icon, then tap Settings, then tap Manage Accounts
3. Tap Account Info, then tap Security settings
4. Unlock your phone using your credentials
5. Tap button on Two-step verification section
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.
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 Yahoo. 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.