AT&T has its own password reset page.
You cannot log on through Yahoo and try to change it that way.
This is the correct link for them. https://uversecentral2.att.com/uvp/home/password_reset
If none of your answers are working on this page as well, it is evident that you have been hacked. They usually go in and get your contact list and use it for spam.
There is another way you can reset your password also.
customer service or technical support for AT&T
You are lucky you are with them. They can change it over the phone for you. Regular Yahoo users cannot.
Once you get your password changed it is not enough to just change that when you get access to your account again.
If you have been hacked, they have your security question answers, your back up email and your password.
CHANGE ALL OF THEM IMMEDIATELY! Only changing one or two isn't enough.
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