Could the be "Publix Fax Authentication"? In either case, "Publix" is the name of a grocery chain. In the first case with "Fox", the Fox news is indicated. In the second case with "Fax", an authentication is required to send a fax.
There has been a case of counterfeit coupons being circulated on the Internet- Publix was one of the chains hit. You message smacks of phishing since it wants a password. I suggest you switch over to the Security forum and go through the malware cleaning process. You will get excellent help there.