AT&T has fixed a range of problems that caused some customers to log into the wrong Facebook account on their mobile phones.

"AT&T added new security measures to prevent the problem from happening again," writes CNET News' Elinor Mills.

"AT&T also fixed a separate problem in which a customer in Atlanta was able to log into the wrong Facebook account on a mobile phone," Mills writes. "In that 'isolated' case, the problem was due to a misdirected cookie on the customer's phone."

Click here to read the CNET News story.