Yahoo users who have received emails claiming their accounts have been violated and asked to call a telephone for help, are asked to delete the same emails. This is because the emails are being sent by cybercriminals to trick Yahoo users into calling a fake technical support or customer service telephone number. If potential victims call the same telephone number they will be asked for their email account credentials (usernames and passwords) and may also be asked for credit card and other sensitive information. And, once the cybercriminals have gotten their victims' account and personal information, they will use it to hijack their accounts and use them fraudulently.
The "Your Yahoo Account Has Been Violated" Phishing Scam
From: "Yahoo" <14867167.C28FEEAB6756FDFF32EFF6zeeqcwfgniuljpw @egajofiptskovft.com>
Date: January 17, 2018 at 8:45:27 AM CST
Subject: Urgent Your Yahoo Account Has Been Violated
You need to call now 1 855-203-6745
We Have Detected Unusual Activity With Your Yahoo Account on Your Computer
Login Has Occurred on 1/17/2018 @ 7:08 AM EST
From IP: 34.124.12.1 Geo Location Found: Eastern Russia
If This Was Not You Please Call the Yahoo Security Team
(Be at your computer)
1 855-203-6745
Yahoo users who have already received the phishing email messages, and who have followed the instructions in them, are asked to change their Yahoo account passwords immediately before their accounts are hijacked by cybercriminals and used fraudulently. And, if they gave out their credit card information, they asked to contact their bank for help. They should let their banks know that they were tricked by a phishing email and unknowingly gave their credit card information to cybercriminals.