The "Your ATT Yahoo Mail New Version is Outdated and has Expired" email message below, which claims recipients' AT&T Mail version is outdated and has expired, is a phishing scam being used to target AT&T customers. The phishing email message, which also claims that if the recipients do not update their information, their accounts will be permanently closed, is being sent by cybercriminals to trick AT&T customers into clicking on the link in it. The link in the email message goes to a fake AT&T website that will ask visitors to sign-in. Once visitors attempt to sign into the fake website with their AT&T credentials, the information will be sent to the cybercriminals behind the phishing scam.
The "Your ATT Yahoo Mail New Version is Outdated and has Expired" Phishing Scam
From: AT&T <firstname.lastname@example.org>
Date: June 19, 2018 at 2:30:04 PM CDT
Subject: Sign In Alert
Reply-To: AT&T <email@example.com>
Your AT&T/Yahoo mail new version is outdated and has expired.
You're advise to switch to the new version to avoid disconnection.
Failure to upgrade to the newest AT&T/Yahoo mail version will result to a permanent account closure.
According to provision of Term and conditions, AT&T/Yahoo may at anytime terminate it's service for accounts.
Please Visit ITS Help-Desk Here To re-validate your mailbox.
Note: Failure to comply within 48hrs might lead to permanent deactivation.
AT&T online service
Once the cybercriminals have received the stolen AT&T credentials, they will use it to hijack their potential victims’ accounts and use the accounts fraudulently. This is why AT&T customers should never click on links in email messages to sign into their accounts, they should instead, go directly to https://www.att.com/ and sign into their email accounts from there. If there is someone that needs to be done their accounts, they will be notified after signing in.
AT&T customers who have been tricked by the phishing scam are asked to contact AT&T for help.