HHS OCR report ยท 2020
Alameda Health System data breach
OCR report facts
- Covered entity
- Alameda Health System
- Entity type
- Healthcare Provider
- State
- California
- Individuals affected
- 2,691
- Submission date
- Sep 15, 2020
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Alameda Health System, reported that multiple employees were the targets of an email phishing scheme that affected the protected health information (PHI) of 16,813 individuals. The PHI involved included clinical, demographic, and treatment information. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE changed passwords and strengthened password requirements, provided individuals with free credit monitoring, revised policies a...
Text as published on the HHS OCR breach portal.
Other reports by Alameda Health System
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Alameda Health System | CA | Healthcare Provider | 90,000 | May 20, 2022 | Hacking/IT Incident | Archive (closed) |
Frequently asked questions
How many people were affected by the Alameda Health System data breach?
The report to HHS OCR lists 2,691 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Sep 15, 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: Email.
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 Health System 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 Health System.