Illinois Department of Human Services Data Breach History
WebsiteIllinois Department of Human Services (IDHS) provides health and human services to residents of Illinois, including Medicaid, rehabilitation services, and social programs.
This page shows all data breaches of Illinois Department of Human Services. View the complete breach timeline, records exposed, root causes, and AI breach risk score. BreachHistory tracks disclosed data breaches worldwide.
Data Breach Timeline — All Illinois Department of Human Services Breaches
- 2025 2025 Illinois DHS — 705K records (misconfigured planning maps) 705.0K records Share
Illinois Department of Human Services Data Breach Summary
This page tracks the Illinois Department of Human Services data breach history and cybersecurity incidents affecting Illinois Department of Human Services (United States). BreachHistory currently indexes 1 publicly disclosed or catalogued incident spanning 2025, with approximately 705 thousand records reported as exposed across all indexed events. These totals may include overlapping datasets or third-party estimates and should not be interpreted as unique affected users.
The Illinois Department of Human Services breach timeline includes major data breaches, cyber attacks, data leaks, credential exposures, API abuse, and other security incidents. Each incident provides details on the estimated records exposed, attack method, affected data types, and supporting public sources. Currently, 0 incidents are company-confirmed.
Largest Illinois Department of Human Services Data Breaches
The largest indexed incidents include the 2025 Illinois DHS — 705K records (misconfigured planning maps). Record counts originating from threat actors or leak sites should be treated as estimates unless confirmed by Illinois Department of Human Services or a regulator. Below is the list of large data breaches:
- 2025 2025 Illinois DHS — 705K records (misconfigured planning maps) — about 705.0K records exposed · Catalogued incident
What Information Was Exposed?
Depending on the incident, exposed data may include names, physical addresses, health and medical (PHI) records, and other personal information (PII). The exact data varies between incidents, so review each breach page before assuming your information was affected.
Illinois Department of Human Services Data Breach 2026
At the time of this update, no Illinois Department of Human Services data breach has been catalogued for 2026. New incidents are added as official disclosures, regulatory filings, or credible cybersecurity reports become available.
What To Do If You Were Affected
If you believe your account may have been involved in a Illinois Department of Human Services data breach, change any reused passwords, enable multi-factor authentication (MFA), monitor your account for suspicious activity, and be cautious of phishing emails or fake breach notifications.
This Illinois Department of Human Services breach history is maintained by BreachHistory using public disclosures, regulatory filings, security research, and clearly labelled third-party claims. For the complete breach timeline, records exposed, incident details, and AI Breach Risk Score, explore the sections on this page.