Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

TriWest Healthcare Alliance

Disclosed Jul 2, 202611,844 affectedConfirmed

Official notice

What is known

People affected11,844 (as reported by the organization)
DisclosedJul 2, 2026
DiscoveredApr 17, 2026
HappenedApr 17, 2026
AttackNot stated
Data exposedHealthInsuranceNames
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: TriWest Healthcare Alliance
Official noticeoag.my.site.com
Texas Attorney General data security breach report BR-0005161: TriWest Healthcare Alliance

Notices filed

Residents of CAJul 2
California AGCount not stated
Residents of TXJul 7
Texas AG2,408 people

Other breaches at TriWest Healthcare Alliance

Insider breachInsider exposed names and health records. Reported to the HHS archive.4,500 affectedHealthcareUSMar 1, 2011
History of this record
data_types2026-09-25
[] to ["health","insurance","names"]by backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 11844by backfillSource
discovered2026-09-25
empty to 2026-04-17by 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 TriWest Healthcare Alliance