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Confirmed4 filings · 2 statesUnverified claimConfirmedEnforcedransomhubhigh sensitivity

Merged incident · 4 filings

Riverdale Country School, Inc. — February 2025 breach

Clustered 4 filings across 3 jurisdictions · filing window Feb 5, 2025 → Jun 30, 2025. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

4 filings

States

Affected · reported

1,524

First → last filing

Feb 5, 2025 → Jun 30, 2025

Merge confidence

100%

incident inc_2ba347ad84db4c07 · merged by human · confidence 100%

Confirmed breach. Merged as one breach: 2 regulatory filings and 2 unverified claims. The filing describes unauthorized access. Intrusion Feb 5, 2025–Feb 6, 2025, discovered Apr 25, 2025 — the first regulatory filing landed 66 days later. 1,524 individuals reported across the linked filings. Data reported: Government ID and Identity (basic). Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

66days

Discovered → first regulatory filing

Leak precedence

145days before filing

Days between the first leak-site claim and the first regulatory filing. Positive = the claim came first (public exposure before disclosure). Negative = the claim trailed the filing, so there was no pre-disclosure leak. Counts regulatory filings only — press coverage is not a regulatory disclosure.

Filing span

145days

Time between earliest and latest filing

Not recorded for this incident

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

Regulatory clocksLeak gap⏱ Leak >90dMaine⏱ ME AG >30d · 66dFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

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