Blue Cross and Blue Shield of Illinois
bd_6218ba4ce7d770a5 · schema v1 · pii pii-v2
Full breach record for Blue Cross and Blue Shield of Illinois →107 incidents on fileBLUE CROSS BLUE SHIELD OF ILLINOIS filed a data-breach notice with the Illinois Attorney General in May 2026 (case 26-05-1192). The register records the breach as discovered on April 17, 2026. Personal information types reported: financial account number, medical information. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.
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Incident timeline
Apr 17, 2026
Discovered
May 1, 2026
Filed
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.