Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

Cook County Health and Hospitals System

4 breaches1.3M affected in allHealthcare

Hacking breachHacking exposed names and health records. Reported to the HHS archive.1.2M affectedHealthcareUSSep 24, 2023Insider breachInsider exposed names and health records. Reported to the HHS archive.727 affectedHealthcareUSOct 27, 2017Hacking breachHacking exposed names and health records. Reported to the HHS archive.23K affectedHealthcareUSJan 11, 2014Lost or stolen device breachLost or stolen device exposed names and health records. Reported to the HHS archive.7,081 affectedHealthcareUSAug 20, 2010
About

Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

records2026-09-25
Cook County Health and Hospitals System, 2010-08-207081
disclosed2026-09-25
Cook County Health and Hospitals System, 2010-08-202010-08-20
Added2026-09-25
Cook County Health and Hospitals System, 2010-08-20
records2026-09-25
Cook County Health and Hospitals System, 2014-01-1122511
disclosed2026-09-25
Cook County Health and Hospitals System, 2014-01-112014-01-11
Added2026-09-25
Cook County Health and Hospitals System, 2014-01-11
Added2026-09-25
Cook County Health and Hospitals System, 2017-10-27
Added2026-09-25
Cook County Health and Hospitals System, 2023-09-24
Added2026-09-25
Cook County Health and Hospitals System