HHS OCR report · 2016
Medical College of Wisconsin data breach
OCR report facts
- Covered entity
- Medical College of Wisconsin
- Entity type
- Healthcare Provider
- State
- Wisconsin
- Individuals affected
- 3,179
- Submission date
- Sep 2, 2016
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- No
- Status
- Archive (closed)
OCR description
An unauthorized third-party comprised the protected health information (PHI) found in an employee’s email account for a period of three days. The compromised email account contained the PHI of 3,225 individuals. The types of PHI involved in the breach included full names, home addresses, dates of birth, medical record numbers, diagnoses, and/or treatment information, and the social security numbers of two patients. The covered entity (CE), Medical College of Wisconsin, provided breach notif...
Text as published on the HHS OCR breach portal.
Other reports by Medical College of Wisconsin
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Medical College of Wisconsin | WI | Healthcare Provider | 240,667 | Nov 14, 2023 | Hacking/IT Incident | Archive (closed) |
Frequently asked questions
How many people were affected by the Medical College of Wisconsin data breach?
The report to HHS OCR lists 3,179 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Sep 2, 2016.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Email.
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 Medical College of Wisconsin 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 Medical College of Wisconsin.