HHS OCR report · 2024
Richland County, WI data breach
OCR report facts
- Covered entity
- Richland County, WI
- Entity type
- Healthcare Provider
- State
- Wisconsin
- Individuals affected
- 76,365
- Submission date
- Sep 9, 2024
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Richland County, WI, reported that it was the subject of a cyber-attack that affected the protected health information (PHI) of 76,365 individuals. The PHI involved included names, addresses, phone numbers, dates of birth, drivers’ license and Social Security numbers, financial and health insurance information, medications, and other treatment information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the brea...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Richland County, WI data breach?
The report to HHS OCR lists 76,365 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Sep 9, 2024.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Network Server.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from Richland County, WI legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or Richland County, WI.