Yahoo users, if you have received fake Yahoo Upgrade notification email like the one below, which claim you need to upgrade your Yahoo and threaten to close or deactivate your account if you do not, please delete the same emails 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.
A Fake Yahoo Mail Upgrade Email Being Sent by Cybercriminals
From: "Center Message" <wei.chen704@hotmail.com>
Sent: Wed, 13 Mar 2019 at 13:19
Subject: Upgrade Notification.
Yahoo mail
We are asking all users to upgrade to our newer version service, due to fixing some errors and security info malfunctioning.Starting from 03/13/2019 you will no longer have access to sign-in into your account if no action is taken.
UPGRADE TO NEW VERSION
To confirm if your account is already upgraded before please, click here . And fill
Nοte: We the Administrator will be notify if you ignore this new version upgrade , and we will be forced to de-activate your account.
All Rights Reserved
© YAHOO! INC. 2019
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 cybercriminals 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 fake upgrade email, are asked to change their Yahoo passwords immediately before their accounts are hijacked and used fraudulently.