Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Multi-Speciality Collection Services

Disclosed Aug 29, 201119,651 affectedConfirmed

Official notice

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What is known

People affected19,651 (as reported to HHS)
DisclosedAug 29, 2011
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeocrportal.hhs.gov
HHS OCR breach report (archive, resolved): Multi-Speciality Collection Services (Business Associate, CA)

Notices filed

TotalAug 29, 2011
HHS archive19,651 people
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.

Everything about Multi-Speciality Collection Services