Illinois DHS Data Breach Affects Over 705,000 Individuals

Illinois DHS Data Breach Affects Over 705,000 Individuals

First seen 4 Feb 2026, 22:55 UTC •Claimdepot •75% similarity •46.3

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The Illinois Department of Human Services experienced a data breach affecting 705,017 individuals. The breach, which occurred between April 2023 and September 2025, was discovered on September 22, 2025, and involved a DDoS attack claimed by the group Red Wolf Cyber, leading to service downtime and exposure of sensitive information.

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Illinois Department Of Human Services U.S. Department Of Health And Human Services