> JapanHacked_
[Investigating][Severity: Major][Ransomware]

Tokyo Computer Service: a cyberattack infected it with ransomware, and a leak of internal management information was confirmed

Ransomware infected it in the early hours of December 31, 2021. Customer transaction data may also have been stolen, and a leak of internal management data was confirmed.

Disclosed

2022-01-04

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. In the early hours it was hit by a cyberattack and infected with ransomware. [1]

  2. It announced the case. It said customer transaction data and more might also have been stolen, and treated it as a serious incident with a risk of a leak. A leak of internal management data was confirmed. [1]

Timeline

  1. Detected 2021-12-31
  2. Disclosed 2022-01-04
  3. 4 days

Attack or cause

Method
[Ransomware]
Impact
[Data leak][Service outage]
Entry point
Unknown

Data exposed or at risk

–

Organizations involved

Open in organization search

Sources

  1. [1][News]東京コンピュータサービスへのサイバー攻撃でランサムウェア感染、情報流出の恐れがある重大事件と認識ScanNetSecurity · 2022-01-07 08:05