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44 disclosed this week · 26,355 on record

San Fernando Valley Medical Group

Disclosed Mar 24, 20211,657 affectedConfirmed

Official notice

The covered entity (CE), San Fernando Valley Medical Group, reported that it experienced a ransomware attack affecting the protected health information (PHI) of 1,657 individuals. The PHI involved included names, addresses, dates of birth, drivers’ license numbers, Social Security numbers, diagnoses, medications prescribed, and other treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards to better protect its PHI. Staff were also retrained. OCR provided the CE with technical assistance.

What is known

People affected1,657 (as reported to HHS)
DisclosedMar 24, 2021
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

History of this record
Added2026-09-25
First recordedby backfillSource

First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.

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