ILLINOIS DEPARTMENT OF HUMAN SERVICES data breach
Incident readout
- Company
- ILLINOIS DEPARTMENT OF HUMAN SERVICES
- Reported to
- Illinois Attorney General
- Filed
- September 22, 2025
- People affected
- Not stated in the filing
- Incident type in filing
- Not stated
- Our review
- Investigation Open
Was this a ransomware attack?
The filing does not say ransomware was involved. We do not label an incident ransomware unless the company’s report says so. Whatever the cause, the steps to protect yourself and the legal question are the same.
What we know
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.
See every breach reported in Illinois or read what to do after a ransomware attack.
Other breaches reported in Illinois
- The University Of Illinois College Of Medicine - ChicagoIllinois Attorney General · Filed July 14, 2026Count not stated
- Abbott Cancer Diagnostics (Formerly Known As Exact Sciences)Illinois Attorney General · Filed July 8, 2026Count not stated
- Aspire Rural Health SystemIllinois Attorney General · Filed July 7, 2026Count not stated
- EVERSANA LIFE SCIENCES SERVICESIL Attorney General · Filed June 30, 2026Count not stated
- EVERSANA LIFE SCIENCES SERVICESIllinois Attorney General · Filed June 30, 2026Count not stated
- EduPath Learning PlatformIllinois Attorney General · Filed June 25, 202678,000 affected
Attorney advertising. This page reflects a public regulator filing; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.