DisclosureLens
UnknownOtherHealth (basic)Low

UW HEALTH - NORTHERN ILLINOIS DIVISION

bd_571b51efe4882c72 · schema v1 · pii pii-v2

Severity

Low

Discovered

Apr 15, 2025

Filed

Oct 1, 2025

To disclose

—

Affected

Withheld by the regulator

Confidence

95%
Full breach record for UW HEALTH - NORTHERN ILLINOIS DIVISION →51 incidents on file

UW HEALTH – NORTHERN ILLINOIS filed a data-breach notice with the Illinois Attorney General in October 2025 (case 25-10-509). The register records the breach as discovered on April 15, 2025. Personal information types reported: 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.

Incident timeline

Apr 15, 2025

Discovered

Oct 1, 2025

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.