HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedDelayed DiscoveryGovernment IDIdentity (basic)MediumContained

Marshall & Melhorn, LLC

bd_c0884ed19903020b · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jun 12, 2023

To disclose

—

Affected

9state residents only

Linked

4 filings

Confidence

66%

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

Marshall & Melhorn, LLC, a law firm, notified the NH Attorney General of an incident where an unauthorized actor gained access to its network on September 14, 2021. The investigation determined that files may have been accessed and acquired, potentially including Social Security numbers and names of nine New Hampshire residents. The review of impacted files was completed on March 6, 2023. Notices were sent on June 7, 2023. The firm engaged computer specialists, notified law enforcement, implemented additional cybersecurity safeguards, and offered 12 months of credit monitoring through Experian.

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Incident timeline

Sep 14, 2021

Begins

Jun 12, 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_25e56e830e87027b2023-06-07 · +5dVerified
Montana State AGbd_a330133bef4180c82023-06-07 · +5dVerified
Vermont State AGbd_fedf4a0256313e982023-06-07 · +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: 9state-resident count only
Data types: Government IDIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified federal law enforcement regarding the eventProviding written notice of this incident to relevant state regulators

During the incident: Launched an investigation with the help of computer specialists
Remediated the disruption
Notified federal law enforcement regarding the event
Implemented additional cybersecurity safeguards
Providing access to credit monitoring services for twelve (12) months, through Experian
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing individuals with information on how to place a fraud alert and security freeze on one's credit file
Providing written notice of this incident to relevant state regulators
Providing written notice of this incident to the three major credit reporting agencies, Equifax, Experian, and Trans Union
Changes made: Reviewed existing security policies
Implemented additional cybersecurity measures to further protect against similar incidents from occurring in the future
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

New Hampshire State AG+5d · this page

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://mm.nh.gov/files/uploads/doj/remote-docs/marshall-melhorn-20230612.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 12, 2023
Raw hash: e8de2f9c37b2b84474240fcfabb573360bbdcbfebd1ca854fdae12d4fcc0a920

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 provenancemm.nh.gov