MalwareProfessional ServicesProfessional ServicesRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Marquis Management LLC

bd_50d893492d967ba7 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 6, 2020

Filed

Mar 15, 2021

To disclose

14 weeks

Affected

244state residents only

Linked

3 filings

Confidence

66%

Full breach record for Marquis Management LLC →

Marquis Management LLC notified the New Hampshire Attorney General of a ransomware incident affecting 244 NH residents. Unauthorized access occurred between Nov 23 and Dec 6, 2020. Exposed data included names and SSNs. Marquis engaged forensic investigators, notified employees, and provided 2 years of Experian credit monitoring.

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Incident timeline

undetected · 13 days

discovery → filing · 14 weeks / 99 days

Nov 23, 2020

Begins

Dec 6, 2020

Discovered

Mar 15, 2021

Filed

vs. sector median

5 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_084511288d57d29c2021-03-02 · +13dVerified
Maine State AGbd_da6655377b387f622021-03-02 · +13dCandidate

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Marquis Management LLC
norm: marquis management
Industry: Professional Servicesllm

Discovered: Dec 6, 2020
Breach occurred: Nov 23, 2020 – Dec 6, 2020
Undetected for: 13 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 5, 2021
Affected individuals: 244state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified state regulators, as required

During the incident: Launched an investigation to determine the full nature and scope of the event
Performed a comprehensive review of the contents of the affected systems
Reviewed internal records to determine the identities and contact information for potentially impacted individuals
Provided written notice of this incident via email and via hand delivery to affected individuals
Mailed supplemental written notice to these same affected current employees
Working to implement additional safeguards and training to its employees
Providing access to credit monitoring services for two (2) years through Experian to individuals whose personal information was potentially affected by this incident, at no cost to these individuals
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Changes made: Implementing additional safeguards and training to its employees
Reviewing existing policies and procedures to include additional safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(99 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGMar 2 · first

Maine State AGMar 2 · first

New Hampshire State AG+13d · this page

Pattern: first filing Mar 2 (MA), last Mar 15 (NH) — a 13-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/marquis-management-20210315.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 15, 2021
Raw hash: c382a935ad6243734c691c90a1db5f8ae8f66dfbcb81edf1f07fdf4751bfc51e

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityMarquis Management LLC

Incidentdiscovered Dec 6, 2020

Stated responseLaunched an investigation to determine the full nature and scope of the event

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov