HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Barr and Barr

bd_6a9c6947ecc0a23e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 6, 2025

Filed

Dec 4, 2025

To disclose

28 days

Affected

57state residents only

Linked

7 filings

Confidence

66%

Full breach record for Barr and Barr →

Barr & Barr, a law firm, notified the New Hampshire Attorney General of a data event affecting 57 NH residents. Unknown actors accessed the network on September 4, 2025, copying files containing names and Social Security numbers. Discovery occurred around November 6, 2025. Barr & Barr notified federal law enforcement, provided credit monitoring via Kroll, and enhanced security policies.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >90d28 days discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 63 days

discovery → filing · 28 days

Sep 4, 2025

Begins

Nov 6, 2025

Discovered

Dec 4, 2025

Filed

vs. sector median

14 wks faster

This filing is one of 7 about the same incident.View merged incident

A leak claim by akira about this victim predates this filing by 91 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siteakirabd_5cf8932058aa8e7c2025-10-01 · +64dVerified by operator
Leak Siteakirabd_e6b082e130b11fd42025-09-04 · +91dVerified by operator

Regulatory filings (4) · sorted by filing gap

Maine State AGbd_36280e2196be7b822025-12-04Candidate
Massachusetts State AGbd_39bdba1765f762462025-12-04Verified by operator
Indiana State AGbd_7322a31d2c6538932025-12-04Verified
Vermont State AGbd_88b4177324f68d322025-12-04Verified

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Barr and Barr
norm: barr and barr
Domain: barrandbarr.com
Industry: Professional Servicesllm

Discovered: Nov 6, 2025
Breach occurred: Sep 4, 2025
Undetected for: 63 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 4, 2025
Affected individuals: 57state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified federal law enforcement regarding the event
Initial access: valid_credentials

During the incident: Took steps to secure their systems
Assess the security of Barr & Barr systems
Investigate the activity
Identified potentially impacted information
Notified federal law enforcement
Providing written notice of the event to relevant state regulators
Providing access to complimentary credit monitoring services for one (1) year, through Kroll
Changes made: Reviewing and enhancing its existing policies and procedures relating to data and cyber security
Assessing new cybersecurity tools
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: Leak >90d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Maine State AGDec 4 · first

Massachusetts State AGDec 4 · first

Indiana State AGDec 4 · first

Vermont State AGDec 4 · first

New Hampshire State AGDec 4 · first · 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/barr-20251204.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 4, 2025
Raw hash: f27045bdc9f87b8f3a0fe0d1bcd2fe50fb4211568c65358bcb00bd6aa4602754

Linked disclosures

Ransomware claims (2)

Regulatory filings (4) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityBarr and Barr

Incidentdiscovered Nov 6, 2025

Stated responseTook steps to secure their systems

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov