DisclosureLens
HackingFinancial ServicesFinanceStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

1ST MIDAMERICA CREDIT UNION

bd_4a0e035dbcce10e1 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 14, 2025

Filed

Feb 2, 2026

To disclose

25 weeks

Affected

7state residents only

Linked

7 filings

Confidence

67%
Full breach record for 1ST MIDAMERICA CREDIT UNION →3 incidents on file

1st MidAmerica Credit Union notified the NH Attorney General of a data breach affecting 7 New Hampshire residents. The incident originated at vendor Marquis Software Solutions, where an unauthorized third party accessed the network and potentially acquired files containing names and Social Security Numbers. The vendor detected suspicious activity on August 14, 2025. MACU confirmed NH resident data was involved on November 24, 2025. Affected individuals were notified on January 22, 2026, and offered 24 months of credit monitoring.

Incident timeline

discovery → filing · 25 weeks / 172 days

Aug 14, 2025

Discovered

Feb 2, 2026

Filed

vs. sector median

+16 wks slower

This filing is one of 7 filings 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 27d gap

Filing propagation · 7 filings · 7 states

View merged incident ↗
Indiana State AGJan 22 · first
Nebraska State AGJan 22 · first
New Hampshire State AG+11d · 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.