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Chicago Muscoskeletal Institute

Disclosed Mar 23, 2012750 affectedConfirmed

Official notice

On December 31, 2011, the names, dates of birth, medical record numbers, and clinic notes for 750 of the covered entity’s (CE) patients were available on its network server and website. The CE disabled the website and removed the 750 patients’ demographic and clinical information from its network server. The CE provided breach notification to HHS, affected individuals, and the media. As a result of OCR’s investigation, the CE provided fraud and credit monitoring to affected individuals and retrained its staff on technical safeguards.

What is known

People affected750 (as reported to HHS)
DisclosedMar 23, 2012
AttackInsider
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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