Okinawa Prefectural College of Nursing: ransomware attack on its academic system
The academic support system of the Okinawa Prefectural College of Nursing was accessed from outside on 22 December 2025 and files on its servers were encrypted by ransomware. The system was cut off from external networks and stopped. As it handles student data, a leak could not be ruled out and an investigation continued.
Disclosed
2026-01-08
Organizations involved
1
Leaked or at risk
Unknown
Downtime
Unknown
Timeline
- Started, Detected 2025-12-22
- Disclosed 2026-01-08
- 17 days
Attack or cause
- Method
- [Ransomware]
- Impact
- [Service outage]
- Entry point
- Unknown
Data exposed or at risk
–
Organizations involved
[Breached][Critical]Okinawa, NahaEducation and learning support
Okinawa Prefectural College of Nursing
Sources
- [1][Official]教務支援システムに対する不正アクセスについて(第1報)Okinawa Prefectural College of Nursing · 2026-01-08