Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

H Mart

Disclosed Aug 20, 202115,879 affectedConfirmed

Official notice

What is known

People affected15,879 (as reported by the organization)
DisclosedAug 20, 2021
AttackNot stated
Data exposedNot stated
SectorRetail · US
StatusConfirmed

Sources

Official noticeoag.ca.gov
California Attorney General breach notice: H Mart
Official noticein.gov
Indiana Attorney General 2021 data breach report: H Mart

Notices filed

Residents of CAAug 20, 2021
California AGCount not stated
Residents of INAug 23, 2021
Indiana AG7 people
History of this record
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 15879by 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 H Mart