McKenzie Health System
ent_722934a6910e1875bdad8887
Disclosures
4
State AG · Leak Site · HHS OCR · 4 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
51,040
nationwide · HHS OCR MI
Leak-site claims
1
unverified actor claims
Identity resolution
- Canonical name
- McKenzie Health System
- Normalized
- mckenzie health system— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- None on record
Disclosure history (4)newest first
- Nebraska State AGas reporting2025-07-24
McKenzie Memorial Hospital notified Nebraska residents of a cybersecurity incident occurring between April 14-15, 2025. The hospital discovered unusual network activity on April 15, 2025, and secured the network, notified law enforcement, and engaged third-party investigators. A limited amount of personal information (names) may have been accessed. The hospital offered 12 months of credit monitoring.
- Vermont State AGas reporting2025-07-24
McKenzie Memorial Hospital notified consumers of a data breach occurring between April 14-15, 2025. Unauthorized access may have resulted in the exposure of names. The hospital engaged third-party investigators, notified law enforcement, and is offering 12 months of credit monitoring. The incident status is contained.
- GLOBALLeak Siteas victim2022-12-26
McKenzie Health System (MHS) is a not-for-profit medical and surgical hospital in Sandusky, Mich., with nine clinics in the surrounding region.
- MICHIGANHHS OCRas victim2022-05-10
McKenzie Health System reported to HHS on 2022-05-10 a Hacking/IT Incident affecting 51040 individuals. Breached information located on Network Server. The cyber-attack exposed PHI including names, addresses, DOB, SSN, driver's license, claims, diagnoses, medications, and medical record numbers. The entity offered credit monitoring and implemented additional safeguards.