HHS OCR report ยท 2021
SAC Health Systems data breach
OCR report facts
- Covered entity
- SAC Health Systems
- Entity type
- Healthcare Provider
- State
- California
- Individuals affected
- 28,128
- Submission date
- May 10, 2021
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
The covered entity (CE), SAC Health Systems, reported that its business associate (BA) experienced a ransomware attack that affected the electronic protected health information (ePHI) of 28,128 individuals. The ePHI involved included names, addresses, Social Security numbers, financial and health insurance information, medications prescribed, and other treatment information. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE terminated its business ...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the SAC Health Systems data breach?
The report to HHS OCR lists 28,128 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on May 10, 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 SAC Health Systems 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 SAC Health Systems.