2025 Illinois DHS — 705K records (misconfigured planning maps)
Data compromised
Demographics, addresses, case numbers, medical plan names, referral info
Technical writeup
Illinois Department of Human Services accidentally exposed planning maps on the internet Sept 22, 2025. ~672,616 Medicaid/Medicare Savings Program recipients: demographic info, addresses, case numbers, medical plan names. ~32,401 Division of Rehabilitation Services customers: names, case numbers, addresses, referral info. Data exposed 2021-2025.
Root cause
Misconfigured public exposure; planning maps left accessible