Home Privacy & Data Security After Major Data Breach, Personal Information of 1.2 Million Chicago Area Patients at Risk After Major Data Breach, Personal Information of 1.2 Million Chicago Area Patients at Riskadmin Nov 06, 2023 0 Comments A recent data breach at a medical transcription firm contracted by Cook County Health (CCH) exposed the personal information of more than 1.2 million CCH patients, the health system said on November 3.