Yahoo account hacked, can't change password

My @sbcglobal.net was hacked and  I am unable to log in without a verification code. When I get to change my password it sends me to the AT&T website and I don't think I have an account or at least not one that has been active since 2011. And I don't remember my password or username from that time.

Hello 

I have a question: My yahoo email acct has been hacked, it happen Friday June 30th around 8 am I turn on system start my yahoo open mail and the first thing I see is something from Yahoo asking me to click here to update, and I did and about minute later it said finished and put me at the login. so I logged in looked at some emails and went outside around 10 am then my wife calls me asking me what I want, told her nothing why, she said you sent me an email asking for a favor, I said no i did not. the email was from me to me and she was cc'ed thats when I knew I ran to the computer and quickly changed my password, now the problem is I now have the hackers acct and he has mine, I sent me an email from wife's acct to me but I never got it, so I sent one to the other email that looks like mine and sure enough it showed up on the screen, So the people with my email it will go to the hacker how do I get it back or am I just fu#$ed, Please help if possible 

Thank you

Ron 

here are the email acct's 

caveman195876@sbcglobal.net this is me 

caveman195876@yahoo.com this is the hacker 

but now we are switched so if you send me an answer use the yahoo.com and I should get it

I was on the phone for 2 and 1/2 hours with "tech support". They escalated me three times, so I spoke to four people. The first three couldn't understand the problem and the fourth one very slowly walked through it all with me. Then she said she'd write it all up and escalate it to an engineer, and call back within 24-48 hours. 

The problem is that the Yahoo! account is hacked - they all are - and is compromised. That means our ATT e-mail is compromised. It's a severe security breach and ATT doesn't have anything in place to handle this problem. It's been this way for at least a year, so indications are they're not worried about your identity security. Even if I deleted the ATT mailbox on Yahoo!, a clever hacker could log in, make a new mailbox and use my name in e-mail to get access to other accounts. Yahoo and ATT have to be unmerged, and they don't seem to know how to do this.

Do we have to switch to Comcast just to fix this security hole?

When support called me back I was connected to a digital assistance specialist. After another 40 minutes on the phone the problem was finally solved: they had to reset and synchronize the passwords and apparently could only do so at that level with my permission. I was then able to change the password on ATT.com and it also changed on yahoo.com. The same process worked for my sub-accounts. Now my yahoo.com password is merged with ATT and I can finally keep it secure. The moral of this tale is to not give up on tech support and eventually you'll get elevated to a level where: (a) they'll understand what the problem is, and (b) they can fix it for you.

i have been trying to change my Yahoo password since last year.  Every time I attempt this, I get sent back to AT&T - its frustrating and exhausting.  I believe my Yahoo email has been hacked because family members are getting spam type emails from my yahoo account that I didn't send.   I've tried unsuccessfully to DELETE the yahoo account.  Keep getting error messages, "try again later".  Sick of this. 

my email account has been hacked. I chat with Jaziel for awhile and got disconnected. I was given a temporary password, but my original password and the temporary does not work. Of course I cannot get on email. I am not a computer ecpert.

I do not know a lot about the computer.  need to get my email account back up. Help

My email account has been hacked. Please help me to get it back up.