NYK: unauthorized access to the marine fuel procurement system
On the afternoon of 24 March, NYK found that data including personal information may have been taken from a marine fuel procurement system used by the group. The system was isolated and stopped, and restored on 27 March. Names, company names, phone numbers and emails of employees (including former ones) and of business partners' employees may have leaked. No encryption or ransom demand was seen.
Disclosed
2026-04-09
Organizations involved
1
Leaked or at risk
Unknown
Downtime
3 days
Timeline
- Started, Detected 2026-03-24
- Disclosed 2026-04-09
- 16 days
Attack or cause
- Method
- [Intrusion]
- Impact
- [Data leak][Service outage]
- Entry point
- Unknown
Data exposed or at risk
Organizations involved
[Breached][Major]Tokyo, ChiyodaTransport and postal services
Nippon Yusen Kabushiki Kaisha
Sources
- [1][Official]個人情報漏えいについてNYK · 2026-04-09