HOW TO MANAGE AND USE YAHOO ACCOUNT/AUTHENTICATION KEY OR CREDENTIAL? Are you tired of remembering your password? Authentication Key is a more secure way to access your mail address and it lets you use your mobile phone instead of a password which you tend to forget every time. Server will send a notification to your mobile device and you can approve access with a tap on your phone, so no one else can get into your email address and compromise sensitive information. First of all, you have to install Yahoo app on your phone.
These are the steps to set up an authentication.
Visit Security Page.
Click on See How It Works.
Select your device.
Tap the Approve Icon on your phone.
Tap on Always use Yahoo authentication (On your browser).
Confirm your phone number.
How to sign-in with a credential (Key)**?