Chicago Public Schools (2026)
670K student records stolen in ransomware attack
2026 continues the year-over-year growth trend in confirmed disclosures. The list below updates as new breaches are reported by Verizon DBIR partners and major security news outlets.
670K student records stolen in ransomware attack
180K student records stolen
340K customer records stolen
280K patient records stolen
450K policyholder records compromised
System failure exposed personal data of residents publicly for four years
210K utility customer records compromised
670K clinical records compromised
340K gaming records exposed in ransomware
280K utility records compromised
190K customer records compromised
560K customer records exposed in credential harvesting
450K customer records stolen
2.6M patient records from 150+ GP surgeries exposed via shared IT platform compromise
Excessive internal access resulted in unauthorized personal data exposure
Fortune 500 operational data — multiple state governments affected