The Kerner Group — July 2025 breach

Clustered 3 filings across 3 jurisdictions · filing window Nov 28, 2025 → Dec 1, 2025. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

3 filings

States

Affected · reported

827

First → last filing

Nov 28, 2025 → Dec 1, 2025

Merge confidence

100%

incident inc_12ec399d4f3d43ab · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 3 regulatory filings. The filing describes a ransomware attack. Intrusion Jul 8, 2025–Sep 13, 2025, discovered Sep 13, 2025 — the first regulatory filing landed 76 days later. 827 individuals reported across the linked filings. Data reported: Government ID, Financial account, and Identity (basic). Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

76days

Discovered → first regulatory filing

Filing span

3days

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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