Overview
The event was discovered on the afternoon of March 24; this is not substituted for the unknown occurrence date. Copying and removal of system data were confirmed, but encryption and ransom demands were not, so ransomware is not asserted.
Timeline
- Occurred
- Discovered
- Disclosed
Unauthorised access discovered.
System restored and privacy authorities notified.
Data copying publicly disclosed.
Organization response
The company isolated the system and restored it on March 27. It reported to privacy authorities on March 27 and police on March 31.
What you can do
Check notices through the organisation’s genuine contact channels. Do not enter credentials or payment details through links in unexpected messages.
Sources
- 燃料調達システムへの不正アクセスと情報持ち出し日本郵船 · 2026-11-09