Yahoo users, be aware of fake "Mailbox has Exceeded the Storage Limit of 1GB" email messages like the one below, which claim that your accounts will be shutdown if you do upgrade immediately. The email messages are phishing scams being sent by cybercriminals to steal Yahoo usernames and passwords, by tricking Yahoo users into visiting a phishing website that steals email account credentials.
A "Yahoo Mailbox has Exceeded the Storage Limit of 1GB" Phishing Scam
From: YAHOO - firstname.lastname@example.org
Sent: Sunday, May 5, 2019, 4:32:16 AM GMT+2
Subject: Immediate account termination process
Yahoo! Customer Care Satisfaction Survey
Your mailbox has exceeded the storage limit of 1 GB and need to be upgraded immediately
You might not be able to receive new messages until you upgrade your account.
Please kindly click : Upgrade Now and confirm your identity now to make safe your Yahoo! mail account
If your account is not upgraded within 3 days, we will be forced to shut down you Yahoo!mail
Thanks for using Yahoo!
Yahoo account service
The link in the phishing email message goes to a fake or phishing Yahoo website, which will attempt to trick the potential victims into entering their usernames and passwords on it. If Yahoo users attempt to sign into the phishing website with their Yahoo usernames and passwords, it will be sent to the cybercriminals behind the email scam, who will use the information to hijack their accounts. The hijacked Yahoo accounts will then be used by cybercriminals fraudulently.
Remember, if you receive email messages like these, please go directly to your email account instead of clicking on the links in the email messages. If there is something wrong with your account, it will be shown to you after signing in. And, if you were tricked by one of these phishing scams, please change your password immediately before your Yahoo account is hijacked.
For victims whose accounts have already been hijacked, click here for help.