HHS OCR report ยท 2024
Kaiser Foundation Hospitals data breach
OCR report facts
- Covered entity
- Kaiser Foundation Hospitals
- Entity type
- Healthcare Provider
- State
- California
- Individuals affected
- 44,600
- Submission date
- Nov 1, 2024
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Kaiser Foundation Hospitals, reported that several employees were the targets of an email phishing scheme that compromised the protected health information (PHI) of 44,600 individuals. The PHI involved included demographic and clinical information. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE changed password/strengthened password requirements, implemented new technical safeguards, and revised policies and procedures.
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Kaiser Foundation Hospitals data breach?
The report to HHS OCR lists 44,600 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Nov 1, 2024.
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 Kaiser Foundation Hospitals 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 Kaiser Foundation Hospitals.