The ILLINOIS DEPARTMENT OF HUMAN SERVICES Data Breach: Incident Facts and Free Case Review

The Illinois Department of Human Services (IDHS) is a government agency responsible for providing essential social services, including public assistance, mental health support, and disability services. Given its role, the department maintains highly sensitive personal records, including Social Security numbers, financial assistance data, medical history, and detailed demographic information for millions of state residents. In 2025, the agency officially reported a data breach to the Illinois Attorney General, confirming that unauthorized access to its systems occurred. If you received a data breach notification letter from the IDHS, it indicates that your personal information was likely stored within the compromised systems. This notice is intended to inform you of the incident and provide guidance on the steps you should take to protect your identity.

State

Illinois

Reported

September 22, 2025