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Regulator-posted notice

Breach notice filed by McKenzie Health System (May 2022)

Organization named: McKenzie Health System Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Hacking/IT Incident

What the sources say

HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice

Posted on the HHS Office for Civil Rights breach portal with a submission date of May 10, 2022.

Organization as reported
McKenzie Health System, MI
Entity type as reported
Healthcare Provider
Category as reported
Hacking/IT Incident
Location of information as reported
Network Server
Submission date
May 10, 2022
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 11467, row:2606)
Archived copy
Held in the private archive (provenance)

The covered entity (CE), McKenzie Memorial Hospital dba McKenzie Health System, reported that it experienced a cyber-attack affecting the protected health information (PHI) of 51,040 individuals. The PHI involved included names, addresses, dates of birth, Social Security and drivers’ license numbers, claims information, diagnoses, medications, medical record numbers, patient account numbers, and health insurance and other treatment information. The CE notified HHS, affected individuals, and the media. Following the breach, the CE offered complimentary credit monitoring and identity theft protection services and implemented additional administrative, technical, and security safeguards. OCR provided technical assistance regarding the HIPAA Rules.

The source's own words, from the revision above.

Figures, per source

  • 51,040 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date May 10, 2022, revision observed 2026-10-18.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

  • Submission date (HHS Office for Civil Rights breach portal)
  • Observed by BreachRecords (revision 11467)
  • Approved by a reviewer

Organizations linked by a reviewer

  • McKenzie Health System Named as the covered entity Provisional: identity as filed, not yet matched to the directory Linked 2026-10-19, method provisional.

Archived evidence

  • 3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
    text/csv, 5,530,996 bytes, retrieved from HHS Office for Civil Rights breach portal, 2026-10-18 16:15 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

Request a correction

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