Every public data breach

44 disclosed this week · 26,355 on record

Community Medical Centers

Disclosed Sep 11, 2020656,047 affectedConfirmed

Official notice

The covered entity (CE), Community Medical Centers, reported that it was the victim of a ransomware attack that compromised the protected health information (PHI) of approximately 604,583 individuals. The PHI involved included names, Social Security numbers, addresses, dates of birth, and clinical information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the CE retrained its workforce members and implemented additional administrative, technical, and security safeguards.

What is known

People affected656,047 (as reported by the organization)
DisclosedSep 11, 2020
HappenedOct 10, 2021
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
disclosed2026-09-25
2021-10-26 to 2020-09-11by backfillSource
attack2026-09-25
unknown to hackingby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
summary2026-09-25
empty to The covered entity (CE), Community Medical Centers, reported that it was the victim of a ransomware attack that compromised the protected health information (PHI) of approximately 604,583 individuals. The PHI involved included names, Socialby backfillSource
records_basis2026-09-25
empty to organizationby backfillSource
records2026-09-25
empty to 656047by 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.

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