NTT Docomo: Phishing Emails Can Show Official Account Mark
The carrier says sender authentication settings can let impersonating emails display the Docomo Mail official account mark, and it will suspend the mark for the affected company.
NTT Docomo disclosed on its website that phishing emails impersonating real companies can display the official account mark in its Docomo Mail service, according to k-tai.watch.impress.co.jp. Until the issue is resolved, the carrier will suspend display of the official account mark for the affected company's emails.
The Docomo Mail official account mark is an anti-phishing feature that shows a mark on messages from verified official accounts. Docomo attributes the problem to factors such as the sender's email authentication settings.
The company is urging users to stop viewing or delete any emails they find suspicious.
What users should do
Docomo's guidance is to avoid opening questionable messages and to delete them. The company has not said when the suspension of the mark will be lifted.
Quick answers
What is the Docomo Mail official account mark?
It is a feature that displays an official account mark on emails from verified accounts to help users spot impersonation.
Why can phishing emails show the official mark?
NTT Docomo attributes the issue to factors such as the sender's email authentication settings.
What should users do with suspicious emails?
Docomo urges users to stop viewing or delete emails they find suspicious.