THE NEW-YORK HISTORICAL SOCIETY — May 2020 breach

Clustered 4 filings across 2 jurisdictions · filing window Oct 13, 2020 → Dec 22, 2020. View entity profile → Other incidents for this victim →

⚠ 2 cross-filing discrepancies →Merge100%

Determination

Confirmed

Members

4 filings

States

Affected · reported

not comparable

First → last filing

Oct 13, 2020 → Dec 22, 2020

Merge confidence

100%

incident inc_22366db004eb4704 · merged by deterministic · confidence 100%

Part of the BLACKBAUD, INC. supply-chain incident (2020) — at least 175 organizations filed notifications naming this third party.

Confirmed breach. Merged as one breach: 4 regulatory filings. Intrusion May 1, 2020–May 20, 2020, discovered Jul 16, 2020 — the first regulatory filing landed 89 days later. Data reported: Government ID, Identity (basic), Financial account, and 2 more. Notifications rolled out on a 70-day schedule across 4 filings beginning Oct 13, 2020. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

89days

Discovered → first regulatory filing

Discovery variance

103days

Range of discovered_at dates across filings

Filing span

70days

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 clocksMaine⏱ ME AG >30d · 56dFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

The weekly clock on records like this one

The Disclosure Clock is a weekly briefing on what landed in the disclosure record, and the gap between the criminals' post and the regulator's filing — measured on the whole record, with the method shown.

Weekly. Double opt-in, one-click unsubscribe, and the address goes nowhere else.