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44 disclosed this week · 26,355 on record

Sea Mar Community Health Centers

Disclosed Oct 29, 2021688,000 affectedConfirmed

Official notice

Sea Mar Community Health Centers, the covered entity (CE), experienced a breach that compromised the protected health information (PHI) of 688,000 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, identification numbers, X-ray images, and claims and treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In its mitigation efforts, the CE implemented additional administrative and technical safeguards to better protect PHI.

What is known

People affected688,000 (as reported to HHS)
DisclosedOct 29, 2021
DiscoveredJun 24, 2021
HappenedDec 12, 2020
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
data_types2026-09-25
[] to ["names","health"]by backfillSource
records_basis2026-09-25
organization to hhsby backfillSource
records2026-09-25
651500 to 688000by backfillSource
summary2026-09-25
empty to Sea Mar Community Health Centers, the covered entity (CE), experienced a breach that compromised the protected health information (PHI) of 688,000 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbby backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 651500by backfillSource
disclosed2026-09-25
2021-11-01 to 2021-10-29by backfillSource
disclosed2026-09-25
2021-11-05 to 2021-11-01by backfillSource
attack2026-09-25
unknown to hackingby backfillSource
discovered2026-09-25
empty to 2021-06-24by backfillSource
disclosed2026-09-25
2022-04-01 to 2021-11-05by 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 Sea Mar Community Health Centers