Troubleshoot sign in to your Yahoo account

+ "First time login here?"
When you try to sign in from a device, program, or place we do not see yet, you may be asked to enter an Account Key (sent to a recovery phone or email) to verify that it is really friend.
If the verification information displayed for your account is outdated, please go to the "Problems using sign-in help" section of this article and see "Incorrect account recovery information."
       . Yahoo Mail Tips
       . Yahoo! Mail
       . Yahoo sign in
+ "Account locked"
To protect your account, your account may be temporarily locked down after too many successful login attempts. It will automatically be unlocked after 12 hours, but you can always regain access to your account right away by using the Sign In Assistant.