The email message below which claims that a request to shut down the recipients’ AT&T accounts has been initiated, is a phishing scam. The fake email message is being sent by cybercriminals to trick Yahoo! AT&T users into sending them their account credentials, by asking them to click on a link in the same email message that goes to a phishing Yahoo! AT&T website. The phishing website, which looks exactly like Yahoo's sign-in page, will ask potential victims to sign-in with their Yahoo! AT&T accounts credential, but once potential victims attempt to sign-in, their account credentials will be sent to the cybercriminals responsible for the fake website. The cybercriminals will then use the stolen credentials to hijack their victims' accounts and use them fraudulently.
The "Yahoo! AT&T Account Shut Down" Phishing Scam
From: "at&t" <firstname.lastname@example.org>
Date: July 11, 2017 at 8:23:40 PM EDT
Subject: AT&T User Secure Mail.
You Recently Initiated an Action on your AT&T account to Shut down your AT&T, Did you initiate this Action? If No, Kindly Cancel Request below by clicking the Cancel Request icon below log on to your account and your account will be automatically restored to it's normal AT&T! settings. This will enable you enjoy better.
Thanks for choosing AT&T.
Yahoo! AT&T Mail Team
Yahoo! AT&T Account Shut Down users should never click on a link in an email message to sign into their accounts. It is recommended that they go directly to www.yahoo.com, and sign into their accounts from there. If there is something wrong with their accounts, they will be notified after signing in. Going directly to Yahoo's website is the best way to protect against phishing scams created by cybercriminals to steal online account credentials (usernames and passwords).