HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedDelayed DiscoveryIdentity (basic)LowContained

Barton Gilman LLP

bd_0923a90f1999f746 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Dec 23, 2025

To disclose

—

Affected

Not disclosed

Linked

5 filings

Confidence

68%

Full breach record for Barton Gilman LLP →

Barton Gilman LLP notified consumers of unauthorized access to its technology environment between September 13 and September 26, 2024. Personal information, including names, may have been removed from the network. The firm engaged third-party investigators, confirmed system security, and reported the incident to law enforcement. Approximately 6,193 Rhode Island residents were affected. Complimentary credit monitoring services are being offered.

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Incident timeline

Sep 13, 2024

Begins

Dec 23, 2025

Filed

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Maine State AGbd_14ec9c5b447c32422025-12-23Verified
New Hampshire State AGbd_598fd2d5e12c9d542025-12-23Verified
Indiana State AGbd_6f242b5c4968fe202025-12-23Verified
Massachusetts State AGbd_43fc4dd61c86c5762025-12-24 · +1dVerified

Name: Barton Gilman LLP
norm: barton gilman

Name: Barton Gilman LLP
norm: barton gilman
Industry: Professional Servicesllm

Discovered: —
Breach occurred: Sep 13, 2024 – Sep 26, 2024
Materiality determined: —
Notification sent: Dec 23, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Reported this event to federal law enforcement and applicable government regulators

During the incident: Immediately began working with third party resources to investigate the nature and scope of the event
Reviewing potentially impacted data
Confirming the security of our systems
Evaluating the information that was impacted
Reviewing the contents of relevant data for sensitive information
Reported this event to federal law enforcement and applicable government regulators
Changes made: Implementing additional security measures to further protect against similar incidents occurring in the future
Providing months of complimentary access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services through Cyberscout
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 · 5 filings · 5 states

View merged incident ↗

Maine State AGDec 23 · first

New Hampshire State AGDec 23 · first

Indiana State AGDec 23 · first

Vermont State AGDec 23 · first · this page

Massachusetts State AG+1d

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://ago.vermont.gov/document/2025-12-23-barton-gilman-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 23, 2025
Raw hash: 21f2f27dba794f2b0cb4ffde6d4caa04ad42cf6f149564d8a3754168242eeaa3

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityBarton Gilman LLP

Victim entityBarton Gilman LLP

IncidentUnauthorized Access

Stated responseImmediately began working with third party resources to investigate the nature and scope of the event

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov