Kaiser Foundation Hospitals, Northern California
Disclosed Feb 23, 20215 years ago2,121 affectedConfirmed
The covered entity (CE), Kaiser Foundation Hospitals, Northern California, reported that an employee impermissibly accessed the medical records and electronic protected health information (ePHI) of 2,121 individuals. The ePHI involved included names, dates of birth, phone numbers, email addresses, and photographs. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. The CE also provided complimentary credit monitoring services. In response to the breach, the CE sanctioned the employee responsible for the breach. OCR provided technical assistance to the CE.
What is known
| People affected | 2,121 (as reported to HHS) |
|---|---|
| Disclosed | Feb 23, 2021 |
| Happened | Jan 1, 2015 |
| Attack | Insider |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Kaiser Foundation Hospitals, Northern Californiaoag.ca.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Kaiser Foundation Hospitals, Northern California (Healthcare Provider, CA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | Feb 23, 2021 | |
| HHS archivetotal | Feb 23, 2021 | 2,121 |
History of this record
- 2026-09-25 · attack: unknown to insider · backfill source
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · records_basis: empty to hhs · backfill source
- 2026-09-25 · records: empty to 2121 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Kaiser Foundation Hospitals, Northern California, reported that an employee impermissibly accessed the medical records and electronic protected health information (ePHI) of 2,121 individuals. The ePHI involved inclu · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.
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