Yahoo users, if you have received the "Warning Mailbox Limited" email message below, which claims your mailbox is limited and you need to upgrade your account, please delete the same email messages and do not follow the instructions in them. This is because the email messages are phishing scams being sent by cybercriminals to trick Yahoo users into clicking on the link in them, which goes to phishing websites that steal Yahoo usernames and passwords.
The "Yahoo Warning Mailbox Limited" Email Scam
From: EMAIL SERVICE - email@example.com
Date: March 28, 2019 at 1:52:48 PM CDT
Subject: Warning Mailbox Limited
Your At&t/Yahoo Mail version is outdated and has expired.
Failure to Upgrade to the newest At&t/Yahoo Mail 7 now will result to a permanent account closure.
According to provision 17.9 of Terms and Conditions, At&t/Yahoo may at anytime terminate its services for accounts.
Visit ITS Help-Desk Here To re-validate your mailbox .
Note: Failure to comply with 48 hrs might lead to permanent deactivation.
Yahoo! AT&T Mail
Yahoo users should never click on a link to sign into their accounts; they should instead, go directly to mail.yahoo.com or yahoo.com and sign-in from there. Once they are signed in, they will be alerted to updates, changes or other important notifications. Going directly to Yahoo’s website to sign into their accounts, will protect Yahoo users from phishing links that go to fake websites that steal usernames and passwords. Phishing websites steal their visitors’ usernames and passwords by asking them to sign into their accounts on the same fake website. Once visitors to the websites attempt to sign-in, their usernames and passwords (credentials) will be sent to the cybercriminals responsible for the phishing websites. As soon as the cyber criminals receive their potential victims’ usernames and passwords, they will sign into their accounts, hijack and use them fraudulently.
Yahoo users who have been tricked by the "Update to Yahoo Mail 7.1" or "Yahoo Warning Mailbox Limited" email scam, are asked to change their Yahoo passwords immediately before their accounts are hijacked and used fraudulently.