HHS OCR report ยท 2020
Alameda Alliance for Health data breach
OCR report facts
- Covered entity
- Alameda Alliance for Health
- Entity type
- Health Plan
- State
- California
- Individuals affected
- 500
- Submission date
- Feb 28, 2020
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
Alameda Alliance for Health, the covered entity (CE), reported that its business associate (BA) was the victim of a cyber-attack affecting the electronic protected health information (ePHI) of 500 individuals. After further investigation, the CE determined that none of its ePHI was affected by this breach incident. This case was therefore closed.
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Alameda Alliance for Health data breach?
The report to HHS OCR lists 500 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Feb 28, 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: 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 Alameda Alliance for Health 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 Alameda Alliance for Health.