Every public data breach

44 disclosed this week · 26,355 on record

University of California, San Francisco

Disclosed Apr 26, 2023676 affectedConfirmed

Official notice

The covered entity (CE), University of California, San Francisco, reported that an employee was the subject of an email phishing attack that affected the protected health information (PHI) of 676 individuals. The PHI involved included names, dates of birth, diagnoses/conditions, and other treatment information. The CE notified HHS, the affected individuals, and the media. In response to the breach, the CE implemented additional administrative, technical, and security safeguards and retrained its workforce members to better protect its PHI.

What is known

People affected676 (as reported to HHS)
DisclosedApr 26, 2023
HappenedFeb 9, 2023
AttackHacking
Data exposedNamesHealth
SectorEducation · US
StatusConfirmed

Sources

Notices filed

Other breaches at University of California, San Francisco

History of this record
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
records_basis2026-09-25
empty to hhsby backfillSource
records2026-09-25
empty to 676by backfillSource
summary2026-09-25
empty to The covered entity (CE), University of California, San Francisco, reported that an employee was the subject of an email phishing attack that affected the protected health information (PHI) of 676 individuals. The PHI involved included namesby 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.

Everything about University of California, San Francisco