The fake website myblue100.com, looks exactly like the legitimate ATT website: http://www.att.com/.
Whatever you do, do not enter your AT&T sign in or login information on the phishing website.
If ATT customers attempt to sign-in to the fake website by entering your userID / cellphone number and password, it will be sent to the scammers behind the bogus website. With their sign-in information, cyber-criminals will be able to gain access to their accounts.
With access to their accounts, they (cyber-criminals) may deactivate the customers' devices, add their own and rack up international calls and internet usage. They may also steal their identity.
ATT customers who were tricked into entering their sign-in information on the fake and malicious website are asked to change their passwords. If they are unable to change their passwords, they are asked to contact AT&T by telephone.
Scammers will be creating more bogus websites and phone recordings to lure persons into their traps. If ATT customers receive any e-mails, text messages, or phone calls claiming that they have won something and that they need to go to a particular website in order to claim their prizes, are asked to contact AT&T to verify the promotion.
The bogus website is similar to: