HackingProfessional ServicesProfessional ServicesData ExfiltratedCustomer Data InvolvedDelayed DiscoveryPIIIdentity (basic)LowContained

Marshall & Melhorn, LLC

bd_fedf4a0256313e98 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Jun 7, 2023

To disclose

—

Affected

Not disclosed

Linked

4 filings

Confidence

67%

Full breach record for Marshall & Melhorn, LLC →2 incidents on file

Marshall & Melhorn, LLC, a law firm, experienced unauthorized access to its network on September 14, 2021. An investigation determined that an unauthorized actor gained access and may have acquired files containing personal information. The review of potentially impacted files was completed on March 6, 2023. The firm notified law enforcement, implemented additional cybersecurity measures, and is offering credit monitoring services to affected individuals.

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Incident timeline

Sep 14, 2021

Begins

Jun 7, 2023

Filed

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

HHS OCRbd_25e56e830e87027b2023-06-07Verified
Montana State AGbd_a330133bef4180c82023-06-07Verified
New Hampshire State AGbd_c0884ed19903020b2023-06-12 · +5dVerified

Name: Marshall & Melhorn, LLC
norm: marshall melhorn
Domain: marshallmelhorn.com

Name: Marshall & Melhorn, LLC
norm: marshall melhorn
Domain: marshallmelhorn.com
Industry: Professional Servicesllm

Discovered: —
Breach occurred: Sep 14, 2021
Materiality determined: —
Notification sent: Jun 7, 2023
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified law enforcement

During the incident: Launched an investigation with the help of computer specialists
Remediated the disruption
Confirmed the security of our systems
Reviewed existing security policies
Implemented additional cybersecurity measures
Notified law enforcement and have cooperated in their investigation
Offering complimentary access to credit monitoring and identity theft restoration services through Experian
Changes made: Reviewed existing security policies
Implemented additional cybersecurity measures
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

HHS OCRJun 7 · first

Montana State AGJun 7 · first

Vermont State AGJun 7 · first · this page

New Hampshire State AG+5d

Pattern: first filing Jun 7 (OH), last Jun 12 (NH) — a 5-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://ago.vermont.gov/document/2023-06-07-marshall-melhorn-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 7, 2023
Raw hash: 55c61b74c5b7c12c58b5ed1012620f00bfa64d6e409763a7a736102f3774bdbd

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMarshall & Melhorn, LLC

Victim entityMarshall & Melhorn, LLC

IncidentUnauthorized Access

Stated responseLaunched an investigation with the help of computer specialists

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov