HHS OCR report · 2020
University of Missouri Health Care data breach
OCR report facts
- Covered entity
- University of Missouri Health Care
- Entity type
- Healthcare Provider
- State
- Missouri
- Individuals affected
- 189,736
- Submission date
- Sep 17, 2020
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), University of Missouri Health Care, reported that an employee was the victim of an email phishing scheme that affected the protected health information (PHI) of 189,736 individuals. The PHI involved included names, addresses, dates of birth, drivers’ license and Social Security numbers, diagnoses, lab results, medications prescribed, and health insurance and other treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice...
Text as published on the HHS OCR breach portal.
Other reports by University of Missouri Health Care
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| University of Missouri Health Care | MO | Healthcare Provider | 736 | May 17, 2023 | Unauthorized Access/Disclosure | Archive (closed) |
| University of Missouri Health Care | MO | Healthcare Provider | 5,074 | Jun 11, 2020 | Hacking/IT Incident | Archive (closed) |
| University of Missouri Health Care | MO | Healthcare Provider | 14,402 | Aug 2, 2019 | Hacking/IT Incident | Archive (closed) |
| University of Missouri Health Care | MO | Healthcare Provider | 1,288 | Jun 23, 2011 | Unknown | Archive (closed) |
Frequently asked questions
How many people were affected by the University of Missouri Health Care data breach?
The report to HHS OCR lists 189,736 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Sep 17, 2020.
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 University of Missouri Health Care 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 University of Missouri Health Care.