HackingFinancial ServicesFinanceSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

Mauch Chunk Trust Company

bd_2dc3397652bb9454 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jul 12, 2023

Filed

Aug 22, 2023

To disclose

6 weeks

Affected

10state residents only

Linked

6 filings

Confidence

65%

Full breach record for Mauch Chunk Trust Company →

Mauch Chunk Trust Company (MCT) notified the NH AG of a data security incident involving third-party vendor Darling Consulting. Files pertaining to MCT were downloaded by an unauthorized actor on May 30, 2023, via the MOVEit vulnerability. MCT learned of the incident on July 12, 2023. 10 New Hampshire residents were notified on August 18, 2023. Impacted data included personal information. No evidence of misuse was found. MCT offered credit monitoring services.

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Incident timeline

undetected · 43 days

discovery → filing · 6 weeks / 41 days

May 30, 2023

Begins

Jul 12, 2023

Discovered

Aug 1, 2023

Scope determined

Aug 22, 2023

Filed

vs. sector median

3 wks faster

This filing is one of 6 about the same incident.View merged incident

Part of Darling Consulting Group supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Montana State AGbd_17cbea2d58dda3db2023-08-22Candidate
Massachusetts State AGbd_dc322af900649b442023-08-22Verified
Maine State AGbd_f064dcba4c94b1252023-08-22Verified
Indiana State AGbd_4fc4b18fdbc958b22023-08-18 · +4dVerified

Show 1 more filing ↓up to 4d gap

Vermont State AGbd_c927018e326a75422023-08-18 · +4dVerified

Name: Mauch Chunk Trust Company
norm: mauch chunk
Domain: mct.bank

Name: Mauch Chunk Trust Company
norm: mauch chunk
Domain: mct.bank
Industry: Financial Servicesllm

Discovered: Jul 12, 2023
Breach occurred: May 30, 2023
Undetected for: 43 daysoccurrence → discovery
Materiality determined: Aug 1, 2023
Notification sent: Aug 18, 2023
Affected individuals: 10state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General Consumer Protection Bureau
Third party: via Darling Consulting
Initial access: supply_chain

During the incident: Reviewed potentially impacted files
Concluded detailed review of the data
Notified affected individuals via U.S. First-Class Mail
Offered complimentary credit monitoring and identity theft protection services through IDX
Reviewing relationships with each of our vendors to ensure that they are maintaining the necessary security standards and procedures
Changes made: Reviewing relationships with each of our vendors to ensure that they are maintaining the necessary security standards and procedures to reduce the chances of a similar incident occurring again
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(41 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Indiana State AGAug 18 · first

Vermont State AGAug 18 · first

Montana State AG+4d

Massachusetts State AG+4d

Maine State AG+4d

New Hampshire State AG+4d · 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/mauch-chunk-trust-company-20230822.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 22, 2023
Raw hash: 157d66fd86efbc063ec740a1dd7e45633b553c9eb7c92d0613a4fc17838ef9f6

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityMauch Chunk Trust Company

Victim entityMauch Chunk Trust Company

Incidentdiscovered Jul 12, 2023

Stated responseReviewed potentially impacted files

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov