HackingFinancial ServicesFinanceStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Financial accountLowContained

Caldwell Trust Company

bd_d65d44a19606a1fb · schema v1 · pii pii-v1

Severity

Low

Discovered

Sep 4, 2025

Filed

Sep 23, 2025

To disclose

19 days

Affected

2state residents only

Linked

5 filings

Confidence

66%

Full breach record for Caldwell Trust Company →

Caldwell Trust Company notified the New Hampshire Attorney General of a cybersecurity incident involving unauthorized access to its network between August 4 and August 8, 2025. The investigation determined that an unauthorized actor accessed files containing names and financial account numbers for two New Hampshire residents. Notification letters were sent on September 23, 2025. Caldwell notified law enforcement, secured its network, and enhanced security protocols.

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Incident timeline

undetected · 31 days

discovery → filing · 19 days

Aug 4, 2025

Begins

Sep 4, 2025

Discovered

Sep 23, 2025

Filed

vs. sector median

7 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Indiana State AGbd_14983cf9d464380c2025-09-23Verified
Massachusetts State AGbd_601d681d8a3f17212025-09-23Verified
Vermont State AGbd_6de67cfcf08d82232025-09-23Verified
Maine State AGbd_f4ce5ece45ee771e2025-09-23Candidate

Name: Caldwell Bank & Trust Company
norm: caldwell bank

Name: Caldwell Trust Company
norm: caldwell trust
Industry: Financial Servicesllm

Discovered: Sep 4, 2025
Breach occurred: Aug 4, 2025 – Aug 8, 2025
Undetected for: 31 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 23, 2025
Affected individuals: 2state-resident count only
Data types: Identity (basic)Financial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1119 Automated Collection
Threat actor: ExternalFinancial

During the incident: Notified law enforcement
Secured its network
Initiated an investigation
Changes made: Enhance its existing security protocols
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 19 days(19 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGSep 23 · first

Massachusetts State AGSep 23 · first

Vermont State AGSep 23 · first

Maine State AGSep 23 · first

New Hampshire State AGSep 23 · 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.

Source URL: https://mm.nh.gov/files/uploads/doj/remote-docs/caldwell-trust-20250923.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 23, 2025
Raw hash: a17d505bb5f25fa21894e51ccdfc42206978d2b78523b199c76c045034945d78

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityCaldwell Bank & Trust Company

Victim entityCaldwell Trust Company

Incidentdiscovered Sep 4, 2025

Stated responseNotified law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov