HackingFinancial ServicesFinanceVulnerability ExploitSupply Chain (3P Vendor)Customer Data InvolvedPIIIdentity (basic)LowContained

Mauch Chunk Trust Company

bd_17cbea2d58dda3db · schema v1 · pii pii-v1

Severity

Low

Discovered

Jul 12, 2023

Filed

Aug 22, 2023

To disclose

6 weeks

Affected

7state residents only

Linked

6 filings

Confidence

65%

Full breach record for Mauch Chunk Trust Company →

Mauch Chunk Trust Company notified Montana residents of a data security incident involving external vendor Darling Consulting. An unauthorized actor downloaded files containing personal information (name, etc.) from MOVEit software on May 30, 2023. MCT was notified on July 12, 2023. No evidence of misuse found. Credit monitoring offered.

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Incident timeline

undetected · 43 days

discovery → filing · 6 weeks / 41 days

May 30, 2023

Begins

Jul 12, 2023

Discovered

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

New Hampshire State AGbd_2dc3397652bb94542023-08-22Verified
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: —
Notification sent: Aug 18, 2023
Affected individuals: 7state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Third party: via Darling Consulting
Initial access: supply_chain

During the incident: Darling Consulting implemented technical measures to fix the MOVEit vulnerability
MCT reviewed relationships with each of our vendors to ensure that they are maintaining the necessary security standards and procedures
Offering complimentary credit monitoring and identity theft protection services through IDX
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

New Hampshire State AG+4d

Massachusetts State AG+4d

Maine State AG+4d

Montana 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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-586.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: 8d038e862f3df799d56ee01f8b1250166a928d418797527f3e5d937a2c46c64b

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityMauch Chunk Trust Company

Victim entityMauch Chunk Trust Company

Incidentdiscovered Jul 12, 2023

Stated responseDarling Consulting implemented technical measures to fix the MOVEit vulnerability

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov