HHS OCR report · 2025
Jack L Marcus data breach
OCR report facts
- Covered entity
- Jack L Marcus
- Entity type
- Business Associate
- State
- Wisconsin
- Individuals affected
- 705
- Submission date
- Jul 14, 2025
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The business associate (BA), Jack L Marcus, reported that the BA’s website impermissibly disclosed the protected health information (PHI) of 705 individuals. The PHI involved was limited to the treatment facility names where inmates in the Wisconsin Department of Corrections were located. The BA notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the BA implemented additional administrative, technical, and security safeguards. Staff me...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Jack L Marcus data breach?
The report to HHS OCR lists 705 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jul 14, 2025.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, 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 Jack L Marcus 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 Jack L Marcus.