HHS OCR report ยท 2019
UW Medicine data breach
OCR report facts
- Covered entity
- UW Medicine
- Entity type
- Healthcare Provider
- State
- Washington
- Individuals affected
- 973,024
- Submission date
- Feb 20, 2019
- 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), UW Medicine, reported that a configuration error in its system resulted in the protected health information (PHI) of 973,024 individuals becoming accessible on the internet. The PHI involved included names and medical record numbers. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the CE implemented additional administrative and technical safeguards and retrained workforce members on methods to better pr...
Text as published on the HHS OCR breach portal.
Other reports by UW Medicine
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| UW Medicine | WA | Healthcare Provider | 3,804 | Sep 21, 2022 | Hacking/IT Incident | Archive (closed) |
| UW Medicine | WA | Healthcare Provider | 763 | Jun 15, 2022 | Theft | Archive (closed) |
| UW Medicine | WA | Healthcare Provider | 18,389 | Jun 4, 2021 | Hacking/IT Incident | Archive (closed) |
Frequently asked questions
How many people were affected by the UW Medicine data breach?
The report to HHS OCR lists 973,024 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Feb 20, 2019.
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 UW Medicine 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 UW Medicine.