> JapanHacked_
[Investigating][Severity: Moderate][Intrusion]

Teikoku Databank: its network was accessed without authorization and some products could not be provided

It detected an anomaly on February 21 and confirmed unauthorized access to its network. Internal systems were affected and some products could not be provided.

Disclosed

2023-02-24

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

What happened

  1. It detected an anomaly in the network and, after checking, confirmed that there had been unauthorized access. [1]

  2. It announced the case. [1] [2]

  3. It published a third report. No trace of file transfer or compression to outside was found, and no leak of information to outside has been confirmed. The attacker viewed or copied to the clipboard 170 files on a system administrator's PC, and 6 of them contained company or personal information. Re-entry has been blocked. [3] [4]

Impact

Internal systems were affected and some products could not be provided. The investigation was under way, and the cause and whether any data leaked were not known at the time of the announcement. [1] [2]

Of the 6 files, the "School File" data held information on 168 schools and the others held email addresses of 15 employees of group and contractor firms (4 companies). The other 164 files held system management information. [3] [4]

Timeline

  1. Started, Detected 2023-02-21
  2. Disclosed 2023-02-24
  3. 3 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][Official]当社ネットワークへの不正アクセスについて|株式会社 帝国データバンク[TDB]Teikoku Databank, Ltd. · 2023-02-24
  2. [2][News]帝国データバンクのネットワークに不正アクセス、一部商品が提供できない状況にScanNetSecurity · 2023-02-27 08:05
  3. [3][Official]不正アクセスに関する調査結果のご報告(第3報)Teikoku Databank, Ltd. · 2023-06-14
  4. [4][News]帝国データバンクへのランサムウェア攻撃、攻撃者によるファイル閲覧とクリップボードへのコピーを確認ScanNetSecurity · 2023-06-21 08:05