Unable to sign in "authentication failed" error in Apple ID
Could not sign in authentication failed
[Re-Titled by Moderator]
Could not sign in authentication failed
[Re-Titled by Moderator]
If you happen to have any Apple trusted device that will open with touch or Face ID you should be able to receive the 6-digit verification code allowing you to change/update your Apple ID password.
Unable to sign in "authentication failed" error in Apple ID