Health care data breach affects 600,000 patients, Illinois agency says – Chicago Sun-Times
More than 32,000 customers with the Illinois Department of Human Services division of rehabilitation services had information publicly viewable between April 2021 and September 2025. The information included names, addresses, case numbers, case status, referral source information, region and office information and status as Division of Rehabilitation Services recipients, the agency said.

Still, Mayor Brandon Johnson acknowledged “there’s a lot more work for us to do. … We’re not patting ourselves on the back yet. But we are certainly grateful for moving toward this positive trend.”