DisclosureLens
UnknownOtherHealth (basic)Government IDMedium

Columbia Medical Practice

bd_5a17f083ad76072c · schema v1 · pii pii-v2

Severity

Medium

Discovered

Mar 31, 2026

Filed

Apr 1, 2026

To disclose

—

Affected

Withheld by the regulator

Confidence

95%
Full breach record for Columbia Medical Practice →3 incidents on file

COLUMBIA MEDICAL PRACTICE filed a data-breach notice with the Illinois Attorney General in April 2026 (case 26-04-1156). The register records the breach as discovered on March 31, 2026. Personal information types reported: medical information, ssn. 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.

Leak gap clock⏱ Leak >90d
⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

Mar 31, 2026

Discovered

Apr 1, 2026

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident
A leak claim by qilin about this victim predates this filing by 147 days.View originating leak claim

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.