Regulator-posted notice

Breach notice filed by University of Wisconsin Hospitals and Clinics Authority (March 2024)

Organization named: University of Wisconsin Hospitals and Clinics Authority 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 March 5, 2024.

Organization as reported: University of Wisconsin Hospitals and Clinics Authority, WI
Entity type as reported: Healthcare Provider
Category as reported: Hacking/IT Incident
Location of information as reported: Email
Submission date: March 5, 2024
Observed by BreachRecords: 2026-10-18 16:15 UTC (revision 10090, row:1229)
Archived copy: Held in the private archive (provenance)

The covered entity (CE), University of Wisconsin Hospitals and Clinics Authority, reported that an employee was the target of an email phishing scheme affecting the protected health information (PHI) of 85,902 individuals. The PHI involved included names, dates of birth, addresses, and diagnoses/conditions. The CE notified HHS, the affected individuals, and the media. In response to the breach, the CE implemented additional administrative, technical, and security safeguards and retrained staff on the requirement to protect and secure PHI.
The source's own words, from the revision above.

Figures, per source

85,902 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date March 5, 2024, 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.

2024-03-05Submission date (HHS Office for Civil Rights breach portal)
2026-10-18Observed by BreachRecords (revision 10090)
2026-10-19Approved by a reviewer

Organizations linked by a reviewer

University of Wisconsin Hospitals and Clinics Authority 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.

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