MalwareTechnologyInformationRansomwareData ExfiltratedData EncryptedRansom DemandedIdentity (basic)Government IDFinancial accountMediumContained

MACMILLAN HOLDINGS, LLC

bd_28b1494eb1078ef1 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 25, 2022

Filed

Dec 5, 2022

To disclose

23 weeks

Affected

30state residents only

Linked

2 filings

Confidence

66%

Full breach record for MACMILLAN HOLDINGS, LLC →

Macmillan notified the New Hampshire Attorney General of a ransomware incident affecting 30 NH residents. Unauthorized access and file encryption occurred June 16-25, 2022. Data included names, SSNs, and financial account info. Macmillan engaged forensic specialists, notified law enforcement, and offered 24 months of credit monitoring.

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Incident timeline

undetected · 9 days

discovery → filing · 23 weeks / 163 days

Jun 16, 2022

Begins

Jun 25, 2022

Discovered

Dec 5, 2022

Filed

vs. sector median

+5 wks slower

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Montana State AGbd_5da8d77d89a6ad622022-12-01 · +4dCandidate

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: MACMILLAN HOLDINGS, LLC
norm: macmillan holdings
Industry: Technologyllm

Discovered: Jun 25, 2022
Breach occurred: Jun 16, 2022 – Jun 25, 2022
Undetected for: 9 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 1, 2022
Affected individuals: 30state-resident count only
Data types: Identity (basic)Government IDFinancial account
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 federal law enforcementProvided written notice to other appropriate state regulatorsProvided notice to the three major consumer reporting agencies, Equifax, Experian, and TransUnion

During the incident: Launched an investigation with the assistance of third-party specialists
Engaged the assistance of third-party specialists to conduct a thorough manual review
Notified federal law enforcement regarding the event
Provided written notice of this event to affected individuals
Provided potentially affected individuals with complimentary access to credit monitoring and identity restoration services for two (2) years, through Experian
Changes made: Instituted additional safeguards
Continuing to review its existing policies and procedures regarding cybersecurity
Evaluating additional measures and safeguards to try to further protect against this type of event in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 weeks(163 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Montana State AGDec 1 · first

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/macmillan-20221205.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 5, 2022
Raw hash: 8829c83ce864bb49040674d5c1dc5893a206c3a2f00c34f0d4fe48c530432647

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityMACMILLAN HOLDINGS, LLC

Incidentdiscovered Jun 25, 2022

Stated responseLaunched an investigation with the assistance of third-party specialists

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov