Suffolk Federal Credit Union — September 2025 breach

Clustered 4 filings across 4 jurisdictions · filing window Sep 1, 2026 → Sep 15, 2026. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

4 filings

States

Affected · reported

781

First → last filing

Sep 1, 2026 → Sep 15, 2026

Merge confidence

100%

incident inc_46103a50760f448f · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 4 regulatory filings. The filings describe a third-party compromise. Intrusion Sep 17, 2025–Oct 9, 2025, discovered Nov 7, 2025 — the first regulatory filing landed 298 days later (flagged late). 781 individuals reported across the linked filings. Data reported: Government ID, PII, Identity (basic), and 1 more. Notifications rolled out on a 14-day schedule across 4 filings beginning Sep 1, 2026. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

298days

Discovered → first regulatory filing

Discovery variance

279days

Range of discovered_at dates across filings

Filing span

14days

Time between earliest and latest filing

Not recorded for this incident

Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.

Regulatory clocksCalifornia✗ CA 60-day late · 308dFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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