2026 Shared Health / HSC Winnipeg — ransomware on facility management (doors, HVAC); OT incident

Verified operational-technology ransomware — August 2026. Shared Health confirmed to ISMG/BankInfoSecurity that Winnipeg’s Health Sciences Centre (Manitoba’s provincial tertiary trauma/transplant/neurosciences hospital, >570,000 patients annually) is responding to a ransomware attack on facility management systems that affected building doors and HVAC. A spokesperson said the incident appears limited to certain facility maintenance systems, with no indication patients were affected based on investigation to date; clinical operations continued while third parties assisted remediation. Manitoba Nurses Union leadership told CBC that unlocked doors raise staff safety concerns given prior building-security issues. No ransomware group had claimed responsibility in sources reviewed at indexing. BreachHistory tracks this as a confirmed OT/facilities incident with recordsAffected 0 pending any later PHI disclosure.