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Cook County Health and Hospitals System

Disclosed Jan 11, 201412 years ago22,511 affectedConfirmed

Official notice

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What is known

People affected22,511 (as reported to HHS)
DisclosedJan 11, 2014
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

WhereFiledPeople
HHS archivetotalJan 11, 201422,511
HHS archivetotalSep 15, 2014767

Other breaches at Cook County Health and Hospitals System

BreachAffected
Disclosed Sep 24, 2023Sep 24, 20233 years agoHacking1.2M
Disclosed Oct 27, 2017Oct 27, 20178 years agoInsider727
Disclosed Aug 20, 2010Aug 20, 201016 years agoLost or stolen device7,081
History of this record
  • 2026-09-25 · records: 767 to 22511 · backfill source
  • 2026-09-25 · disclosed: 2014-09-15 to 2014-01-11 · backfill source
  • 2026-09-25 · added · backfill source

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

Everything about Cook County Health and Hospitals System

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