MalwareProfessional ServicesProfessional ServicesRansomwareSupply Chain (3P Vendor)Data EncryptedTargetedIdentity (basic)Government IDMediumContained

Porte Brown LLC

bd_d5c8160ba4a15ca2 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 1, 2020

Filed

Mar 8, 2022

To disclose

16 months

Affected

2state residents only

Linked

6 filings

Confidence

66%

Full breach record for Porte Brown LLC →

Porte Brown, LLC, an accounting firm, notified the New Hampshire Attorney General of a data incident involving 2 NH residents. Third-party IT provider Netgain suffered a ransomware attack in November 2020, exposing customer data. Porte Brown confirmed names, addresses, and SSNs of 2 NH residents were exposed. Notification letters were sent on December 20, 2021. Identity monitoring services were provided.

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Incident timeline

discovery → filing · 16 months / 492 days

Nov 1, 2020

Begins

Nov 1, 2020

Discovered

Mar 8, 2022

Filed

vs. sector median

+52 wks slower

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Massachusetts State AGbd_8402645ea1e6ab892022-03-08Verified
Maine State AGbd_4738cc7387cc1a192022-03-07 · +1dVerified
Montana State AGbd_a7666ef8f3d467492022-03-07 · +1dVerified
Illinois State AGbd_e2f33b3bc80d62232022-01-01 · +66dVerified

Show 1 more filing ↓up to 78d gap

Indiana State AGbd_62ec6ca407e5e3a52021-12-20 · +78dCandidate

Name: Marshall Dennehey Warner Coleman & Goggin, P.A.
norm: marshall dennehey warner coleman goggin

Name: Porte Brown LLC
norm: porte brown
Industry: Professional Servicesllm

Discovered: Nov 1, 2020
Breach occurred: Nov 1, 2020
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 20, 2021
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1486 Data Encrypted for Impact
Threat actor: ExternalFinancial
Regulator citations: Notified the FBI
Third party: via Netgain
Initial access: supply_chain

During the incident: Retained third-party forensic experts to assist in their investigation of this incident
Reviewed their internal data management protocols and implemented enhanced security measures
Secured the system
Consultation with the FBI and cybersecurity experts
Arranged to protect the individuals affected by this incident by providing identity monitoring services for two years at no cost
Changes made: Reviewed internal data management protocols
Implemented enhanced security measures
Worked with additional outside IT resources
Added new security software
Increased monitoring and testing
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 months(492 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 AGDec 20 · first

Illinois State AG+12d

Maine State AG+77d

Montana State AG+77d

Massachusetts State AG+78d

New Hampshire State AG+78d · this page

Pattern: first filing Dec 20 (IN), last Mar 8 (NH) — a 78-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/porte-brown-20220308.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 8, 2022
Raw hash: 773eaf072525d5f7a610f40f6b046f6a8b711b636e64b8818dffcc19403372dc

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityMarshall Dennehey Warner Coleman & Goggin, P.A.

Victim entityPorte Brown LLC

Incidentdiscovered Nov 1, 2020

Stated responseRetained third-party forensic experts to assist in their investigation of this incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov