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One Community Health

Disclosed Jan 2, 20268 months ago4,309 affectedConfirmed

Official notice

The covered entity (CE), One Community Health, reported that a subcontractor of its business associate (BA) experienced a hacking incident that compromised the protected health information (PHI) of 4,309 individuals. The PHI involved included demographic and clinical information. The CE notified HHS, affected individuals, the media, and published substitute notice on its website. The subcontractor notified law enforcement. OCR provided technical assistance regarding the HIPAA Breach Notification Rule.

What is known

People affected4,309 (as reported to HHS)
DisclosedJan 2, 2026
HappenedNov 1, 2024
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Source
California Attorney General breach notice: One Community Healthoag.ca.gov · Official notice
HHS OCR breach report (archive, resolved): One Community Health (Healthcare Provider, CA)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
HHS archivetotalJan 24,309
California AGresidents of CAJan 8

Other breaches at One Community Health

BreachAffected
Disclosed Nov 22, 2021Nov 22, 20214 years agoRansomware40K
History of this record
  • 2026-09-25 · attack: unknown to hacking · backfill source
  • 2026-09-25 · data_types: [] to ["names","health"] · backfill source
  • 2026-09-25 · records_basis: empty to hhs · backfill source
  • 2026-09-25 · records: empty to 4309 · backfill source
  • 2026-09-25 · disclosed: 2026-01-08 to 2026-01-02 · backfill source
  • 2026-09-25 · summary: empty to The covered entity (CE), One Community Health, reported that a subcontractor of its business associate (BA) experienced a hacking incident that compromised the protected health information (PHI) of 4,309 individuals. The PHI involved includ · 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 One Community Health

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