Taiwan
TWN
MacKay Memorial Hospital ransomware disrupts emergency and outpatient systems
MacKay Memorial Hospital suffered a ransomware attack in February 2025 that encrypted hospital files and caused more than 500 computers in emergency and outpatient departments to crash, materially disrupting medical operations. Taiwanese police later attributed the attack to CrazyHunter and reported subsequent patient-data extortion activity.
78
Estimated severity
78 / 100
89
Source reliability
89 / 100
Approximate Date
06/02/2025
Targeted Company
MACKAY MEMORIAL HOSPITAL
Targeted Company Supply Chain Impact
Distribution & Fulfillment
Procurement & Sourcing
Production & Manufacturing
Sales (Retail & Ecommerce)
Warehousing
Service Delivery
Unrecognized Impact
Supply Chain Relations
No information
Geographic Impact
Country Targeted Company
Other Affected Countries
No other affected countries reported
Target country
Taiwan
Affected countries
Taiwan
Impacted regions
Taipei · TaiwanNew Taipei · Taiwan
Operational Impact
Duration
No information
Financial impact (USD M)
No information
Impact types
Operational disruptionService degradation
Affected sectors
Healthcare & Public Health
Affected departments
Information Technology
Attack Profile
Attack types
Data exfiltrationRansomware
Attributed threat actors
CRAZYHUNTER