2026 Mile Bluff Medical Center - ransomware encryption and downtime procedures
Data compromised
Patient data impact not determined at time of disclosure
Technical writeup
Mile Bluff Medical Center in Mauston, Wisconsin disclosed an April 2026 cyberattack that encrypted files on its network. HIPAA Journal reported that security protocols were implemented, third-party partners were assisting the investigation, phone systems were impacted, and clinical teams worked under downtime procedures while systems were restored. At the time of reporting, the medical center said it was too early to determine whether patient data had been affected.
Root cause
Ransomware encryption affecting healthcare network systems