Security researchers from Bkis warn of a wave of phishing emails posing as notifications from Yahoo and asking users to confirm their credentials in order to avoid having their account terminated.
The phishing emails come with spoofed headers to appear as originating from "The Yahoo! Mail Team" <firstname.lastname@example.org> and have a subject of "Update Your Account!!!"
A big banner with the company's logo contained in the email suggests that spammers used a template from a Yahoo customer care satisfaction survey and modified the text of the message.
"Due to the congestion in all Yahoo! Accounts, Yahoo! Will be shutting down some of our accounts, both premium and free accounts for security reasons.
"In order to avoid the deactivation of your account, you will have to confirm your e-mail by filling your Login Info below after clicking the reply button.
"We are really sorry for any inconvenience this might cause use
," part of the poorly formulated message reads.