HHS OCR report ยท 2021
Stanford University School of Medicine data breach
OCR report facts
- Covered entity
- Stanford University School of Medicine
- Entity type
- Healthcare Provider
- State
- California
- Individuals affected
- 2,063
- Submission date
- May 28, 2021
- 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), Stanford University School of Medicine, reported that its business associate (BA) experienced a cyber-attack that affected the electronic protected health information (ePHI) of 2,063 individuals. The ePHI involved included names, addresses, email addresses, dates of birth, Social Security numbers, and diagnoses. The CE notified HHS and affected individuals. Following the breach, the CE offered complimentary identity protection and credit monitoring services.
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Stanford University School of Medicine data breach?
The report to HHS OCR lists 2,063 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on May 28, 2021.
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 Stanford University School of 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 Stanford University School of Medicine.