1ST MIDAMERICA CREDIT UNION — May 2021 breach

Clustered 3 filings across 3 jurisdictions · filing window Oct 7, 2021 → Oct 12, 2021. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

3 filings

States

Affected · reported

1,467

First → last filing

Oct 7, 2021 → Oct 12, 2021

Merge confidence

100%

incident inc_88b361e534364d8f · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 3 regulatory filings. The filing describes an insider incident. Intrusion May 12, 2021–May 20, 2021, discovered May 1, 2021 — the first regulatory filing landed 159 days later. 1,467 individuals reported across the linked filings. Data reported: Government ID and Identity (basic). Notifications rolled out on a 5-day schedule across 3 filings beginning Oct 7, 2021. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Notification delay

159days

Discovered → first regulatory filing

Filing span

5days

Time between earliest and latest filing

Not recorded for this incident

Discovery variance · Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.

Regulatory clocksMassachusetts✓ MA credit monitoring dueFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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