UChicago Medicine Medical Group
bd_82f8b62638bd6767 · schema v1 · pii pii-v1
Full breach record for UChicago Medicine Medical Group →UChicago Medicine Medical Group reported a data breach to the Indiana Attorney General. The breach occurred on 2024-07-05 and was reported on 2025-05-23. 1,694 Indiana residents were affected. 38,656 individuals affected in total.
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Incident timeline
Jul 5, 2024
Begins
May 23, 2025
Filed
Linked disclosures
Why this link?Regulatory filings (3) · sorted by filing gap
- Massachusetts State AGbd_4662282c408533242025-05-23Verified
- HHS OCRbd_936e4718fa51638f2025-05-23Verified
- Illinois State AGbd_6a6c15405a09f7902025-05-01 · +22dVerified by operator
Filing propagation · 4 filings · 3 states
View merged incident ↗Pattern: first filing May 1 (IL), last May 23 (IN) — a 22-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.