Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Medical Card System/MCS-HMO/MCS Advantage/MCS Life

Disclosed Nov 9, 2010115,000 affectedConfirmed

Official notice

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What is known

People affected115,000 (as reported to HHS)
DisclosedNov 9, 2010
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeocrportal.hhs.gov
HHS OCR breach report (archive, resolved): Medical Card System/MCS-HMO/MCS Advantage/MCS Life (Business Associate, PR)

Notices filed

TotalNov 9, 2010
HHS archive115,000 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 Medical Card System/MCS-HMO/MCS Advantage/MCS Life