TriWest Healthcare Alliance

Disclosed Jul 2, 20262 months ago11,844 affectedConfirmed

Official notice

What is known

People affected	11,844 (as reported by the organization)
Disclosed	Jul 2, 2026
Discovered	Apr 17, 2026
Happened	Apr 17, 2026
Attack	Not stated
Data exposed	Health, Insurance, Names
Sector	Healthcare · US
Status	Confirmed

Sources

Source	Kind
California Attorney General breach notice: TriWest Healthcare Allianceoag.ca.gov · Official notice	Official notice
Texas Attorney General data security breach report BR-0005161: TriWest Healthcare Allianceoag.my.site.com · Official notice	Official notice

Notices filed

Where	Filed	People
California AGresidents of CA	Jul 2
Texas AGresidents of TX	Jul 7	2,408

Other breaches at TriWest Healthcare Alliance

Breach	Disclosed	Attack	Sector	Status	Affected
Disclosed Mar 1, 2011Mar 1, 201115 years agoInsider	Mar 1, 201115 years ago	Insider	Healthcare	Confirmed	4,500

History of this record

2026-09-25 · data_types: [] to ["health","insurance","names"] · backfill source
2026-09-25 · records_basis: empty to organization · backfill source
2026-09-25 · records: empty to 11844 · backfill source
2026-09-25 · discovered: empty to 2026-04-17 · 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.

Everything about TriWest Healthcare Alliance

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