HHS OCR report ยท 2026
Wisconsin Department of Health Services data breach
OCR report facts
- Covered entity
- Wisconsin Department of Health Services
- Entity type
- Health Plan
- State
- Wisconsin
- Individuals affected
- 8,157
- Submission date
- Jul 1, 2026
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Paper/Films
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Wisconsin Department of Health Services, reported that a mailing error resulted in members receiving letters containing the protected health information (PHI) of individuals who no longer live at the residences. According to the breach report, the breach affected approximately 8,157 individuals. The PHI involved clinical and treatment information. The CE notified HHS, the media, and the affected individuals. In its mitigation efforts, the CE implemented new techni...
Text as published on the HHS OCR breach portal.
Other reports by Wisconsin Department of Health Services
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Wisconsin Department of Health Services | WI | Healthcare Provider | 19,150 | Jun 21, 2024 | Hacking/IT Incident | Archive (closed) |
| Wisconsin Department of Health Services | WI | Health Plan | 12,358 | Oct 7, 2022 | Unauthorized Access/Disclosure | Archive (closed) |
| Wisconsin Department of Health Services | WI | Health Plan | 1,698 | Jul 8, 2022 | Hacking/IT Incident | Archive (closed) |
| Wisconsin Department of Health Services | WI | Health Plan | 2,868 | Jun 4, 2021 | Hacking/IT Incident | Archive (closed) |
| Wisconsin Department of Health Services | WI | Health Plan | 1,281 | Jan 15, 2021 | Hacking/IT Incident | Archive (closed) |
| Wisconsin Department of Health Services | WI | Health Plan | 779 | Apr 3, 2018 | Theft | Archive (closed) |
Frequently asked questions
How many people were affected by the Wisconsin Department of Health Services data breach?
The report to HHS OCR lists 8,157 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jul 1, 2026.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, with the breached information located in: Paper/Films.
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 Wisconsin Department of Health Services 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 Wisconsin Department of Health Services.