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[Investigating][Severity: Major][Intrusion]

Daihatsu Diesel: a European group company was accessed without authorization and its file server became unreachable

From May 14, a European group company could not reach its file server, and unauthorized access was confirmed. The network and systems were stopped for investigation.

Disclosed

2021-05-16

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. At a European group company, the file server of the internal systems became unreachable, and unauthorized access by a third party was confirmed. It stopped the network and systems and reported to local authorities. [1] [2]

  2. Daihatsu Diesel announced the case. [2]

Investigation

The company is investigating the cause and extent with outside security experts and a system support firm. It did not disclose concrete effects on operations. It said no unauthorized access was found outside the European group company and that the domestic group was not affected. It did not name the affected company, citing the risk of secondary damage. Media reports described ransomware, but the company did not say so and declined to comment on the cause. [1] [2]

Timeline

  1. Started, Detected 2021-05-14
  2. Disclosed 2021-05-16
  3. 2 days

Attack or cause

Method
[Intrusion]
Impact
[Service outage]
Entry point
Unknown

Data exposed or at risk

–

Organizations involved

Open in organization search

Sources

  1. [1][News]欧州グループ会社にサイバー攻撃 - ダイハツディーゼルSecurity NEXT · 2021-05-18
  2. [2][News]ダイハツディーゼルの欧州グループ会社へサイバー攻撃、ファイルサーバにアクセスできない障害発生ScanNetSecurity · 2021-05-18 08:00