DisclosureLens
UnknownOtherCustomer Data InvolvedIdentity (basic)Government IDMedium

New Hampshire Historical Society

bd_9b87ba887e50caab · schema v1 · pii pii-v2

Severity

Medium

Discovered

—

Filed

Apr 1, 2026

To disclose

—

Affected

8state residents only

Linked

5 filings

Confidence

69%
Full breach record for New Hampshire Historical Society →

New Hampshire Historical Society notified Massachusetts residents of a data incident affecting personal information, including Social Security Numbers. The organization is providing 24 months of credit monitoring and fraud assistance via Cyberscout. The specific nature, date, and scope of the breach are not detailed in the notice.

Incident timeline — partial

? — ?

Breach window unknown

Apr 1, 2026

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

This filing is one of 5 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Filing propagation · 5 filings · 5 states

View merged incident ↗
Vermont State AGApr 1 · first
New Hampshire State AGApr 1 · first
Indiana State AGApr 1 · first
Maine State AGApr 1 · first
Massachusetts State AGApr 1 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.