Restore access to Yahoo accounts created using a Facebook or Google ID
If your Yahoo ID is a Facebook or Google email-address and you haven’t signed in to your account for a while, you may have some trouble accessing it. Get back in using the Sign-in Helper and create a new password.
Go to the Sign-in Helper.
Enter your Facebook or Google ID in the Yahoo ID field, then click or tap Continue.
Follow the directions to get back into your account.
Once you’ve successfully signed in, create a new password.