Regulator-posted notice

Breach notice filed by Kaiser Foundation Hospitals (November 2024)

Organization named: Kaiser Foundation Hospitals Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Hacking/IT Incident

What the sources say

HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice

Posted on the HHS Office for Civil Rights breach portal with a submission date of Nov. 1, 2024.

Organization as reported: Kaiser Foundation Hospitals, CA
Entity type as reported: Healthcare Provider
Category as reported: Hacking/IT Incident
Location of information as reported: Email
Submission date: Nov. 1, 2024
Observed by BreachRecords: 2026-10-18 16:15 UTC (revision 9626, row:765)
Archived copy: Held in the private archive (provenance)

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.
The source's own words, from the revision above.

Figures, per source

44,600 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date Nov. 1, 2024, revision observed 2026-10-18.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

2024-11-01Submission date (HHS Office for Civil Rights breach portal)
2026-10-18Observed by BreachRecords (revision 9626)
2026-10-19Approved by a reviewer

Organizations linked by a reviewer

Kaiser Foundation Hospitals Named as the covered entity Provisional: identity as filed, not yet matched to the directory Linked 2026-10-19, method provisional.

Archived evidence

3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
text/csv, 5,530,996 bytes, retrieved from HHS Office for Civil Rights breach portal, 2026-10-18 16:15 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

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