DisclosureLens
UnknownOtherGovernment IDMedium

1ST MIDAMERICA CREDIT UNION

bd_5d6294648734975e · schema v1 · pii pii-v2

Severity

Medium

Discovered

Aug 14, 2025

Filed

Mar 1, 2026

To disclose

Affected

Withheld by the regulator

Linked

7 filings

Confidence

95%
Full breach record for 1ST MIDAMERICA CREDIT UNION3 incidents on file

1ST MIDAMERICA CREDIT UNION filed a data-breach notice with the Illinois Attorney General in March 2026 (case 26-03-1037). The register records the breach as discovered on August 14, 2025. Personal information types reported: drivers license, 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.

Incident timeline

Aug 14, 2025

Discovered

Mar 1, 2026

Filed

This filing is one of 7 about the same incident.View merged incident
Part of Marquis Software Solutions, Inc. supply-chain incident (2025) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Show 2 more filingsup to 38d gap

Filing propagation · 7 filings · 7 states

View merged incident ↗
Indiana State AGJan 22 · first
Nebraska State AGJan 22 · first
Illinois State AG+38d · this page

Pattern: first filing Jan 22 (IN), last Mar 1 (IL) — a 38-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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.