HHS OCR report · 2018
Yale University data breach
OCR report facts
- Covered entity
- Yale University
- Entity type
- Healthcare Provider
- State
- Connecticut
- Individuals affected
- 1,102
- Submission date
- Oct 17, 2018
- 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), Yale University, discovered in September 2018, that it sent letters to wrong addresses due to a collating error, affecting 1,102 individuals. The types of protected health information (PHI) involved in the incident included demographic and clinical information. OCR reviewed the CE’s policies and procedures related to the breach and was satisfied that they were in compliance with the Privacy Rule. Following the breach, the CE sanctioned and retrained employees and u...
Text as published on the HHS OCR breach portal.
Other reports by Yale University
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Yale University | CT | Healthcare Provider | 9,051 | Nov 11, 2022 | Hacking/IT Incident | Archive (closed) |
| Yale University | CT | Healthcare Provider | 1,000 | Aug 18, 2010 | Theft | Archive (closed) |
Frequently asked questions
How many people were affected by the Yale University data breach?
The report to HHS OCR lists 1,102 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Oct 17, 2018.
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 Yale University 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 Yale University.