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Illinois DHS Data Breach Affects 700,000 Residents

Illinois DHS Data Breach Affects 700,000 Residents

First seen 21 Jan 2026, 06:39 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

The Illinois Department of Human Services has reported a data breach affecting approximately 700,000 residents. The breach exposed personal and program-related data for over 672,000 Medicaid and Medicare Savings Program recipients, including sensitive information such as addresses and case numbers.

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