> JapanHacked_
[Resolved][Severity: Moderate][Unknown]

EIZO: the email account of a local employee abroad was hijacked and used to send 620 targeted attack emails leading to a phishing site

From the hijacked account, an email leading to a credential-stealing phishing site went to 620 recipients. No download of mailbox data was found.

Disclosed

2021-08-18

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. It confirmed that a targeted attack email leading to a credential-stealing phishing site had gone from a local employee's account abroad to 620 recipients in Japan and abroad, 194 of them outside the company. [1]

  2. It announced the case, apologized to outside recipients and warned staff. [1]

Impact

For about 45 minutes between the hijack and the suspension of the account, the attacker could reach 3,130 email addresses (987 outside the company) and 1,053 sent and received emails of the employee. Communication log analysis confirmed that none were downloaded. [1]

Timeline

  1. Started, Detected 2021-08-06
  2. Disclosed 2021-08-18
  3. 12 days

Attack or cause

Method
[Unknown]
Impact
Entry point
E-mail

Data exposed or at risk

–

Organizations involved

Open in organization search

Sources

  1. [1][News]EIZOの海外現地社員のメールアカウント乗っ取り被害、標的型攻撃メール620件送信ScanNetSecurity · 2021-08-23 08:00