Kangwon National University Hospital security incident history
Hacking, data breaches and other security incidents involving Kangwon National University Hospital, with related coverage.
Suspected ransomware cyber-attack disrupts Kangwon National University Hospital’s medical imaging system
Impact: Blocked access to the medical imaging system and disruption to patient care
Kangwon National University Hospital suffered a suspected ransomware cyber-attack in January 2026, blocking access to its medical imaging system and disrupting patient care. The attacker demanded Bitcoin worth hundreds of millions of won in return for decryption. The hospital restored the system within two days, and no personal information leak was confirmed at the time.
Related reports: 2 · last report →Kangwon National University Hospital restores imaging system crippled by ransomware
Impact: Picture archiving and communication system (PACS) crippled
The picture archiving and communication system (PACS) at Kangwon National University Hospital was crippled by a ransomware attack. News of the system's restoration emerged on 29 January 2026, and the hospital said there had been no disruption to patient care.
Related reports: 2 →