DisclosureLens
UnknownFinanceHigh

1ST MIDAMERICA CREDIT UNION

bd_76d756860b4047a3 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Jan 22, 2026

To disclose

—

Affected · nationwide

131,070289 in this filing

Linked

7 filings

Confidence

95%
Full breach record for 1ST MIDAMERICA CREDIT UNION →3 incidents on file

1st MidAmerica Credit Union reported a data breach to the Indiana Attorney General. The breach occurred on 2025-08-14 and was reported on 2026-01-22. 289 Indiana residents were affected. 131,070 individuals affected in total.

Incident timeline

Aug 14, 2025

Begins

Jan 22, 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 filings ↓up to 38d gap

Filing propagation · 7 filings · 7 states

View merged incident ↗
Nebraska State AGJan 22 · first
Indiana State AGJan 22 · first · this page
Maine State AG+8d
Vermont State AG+8d
Texas State AG+11d
New Hampshire State AG+11d
Illinois State AG+38d

Pattern: first filing Jan 22 (NE), 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.