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44 disclosed this week · 26,355 on record

Kaiser Foundation Hospitals, Northern California

Disclosed Feb 23, 20212,121 affectedConfirmed

Official notice

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 affected2,121 (as reported to HHS)
DisclosedFeb 23, 2021
HappenedJan 1, 2015
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
attack2026-09-25
unknown to insiderby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
records_basis2026-09-25
empty to hhsby backfillSource
records2026-09-25
empty to 2121by backfillSource
summary2026-09-25
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 incluby backfillSource
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

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