Every public data breach

44 disclosed this week · 26,355 on record

UC San Diego Health

Disclosed Mar 16, 202322,971 affectedConfirmed

Official notice

The covered entity (CE), UC San Diego Health, reported that its business associate (BA) impermissibly used analytics tools on its websites that captured and transmitted the protected health information (PHI) of 22,971 individuals to its third-party service providers without a valid business associate agreement. The PHI involved included names, dates of birth, addresses, email addresses, IP addresses, and health insurance information. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In its mitigation efforts, the CE terminated its business relationship with the BA and implemented new policies and procedures and retrained workforce members to better protect PHI.

What is known

People affected22,971 (as reported to HHS)
DisclosedMar 16, 2023
HappenedSep 13, 2022
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at UC San Diego Health

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 22971by backfillSource
summary2026-09-25
empty to The covered entity (CE), UC San Diego Health, reported that its business associate (BA) impermissibly used analytics tools on its websites that captured and transmitted the protected health information (PHI) of 22,971 individuals to its thiby 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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