Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Tieu Dental

Disclosed Mar 5, 20268,918 affectedConfirmed

Official notice

What is known

People affected8,918 (as reported to HHS)
DisclosedMar 5, 2026
HappenedJul 28, 2025
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: Tieu Dental
Official noticeocrportal.hhs.gov
HHS OCR breach report: Tieu Dental (Healthcare Provider, CA)

Notices filed

Residents of CAMar 5
California AGCount not stated
TotalMar 5
HHS OCR8,918 people
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 8918by 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 Tieu Dental