Data Breach Law Group Investigates the Barton Gilman LLP Data Breach
By Data Breach Law Group | Posted on December 23, 2025 · New Hampshire
Miami, FL — Data Breach Law Group is investigating a data breach involving Barton Gilman LLP, reported to the New Hampshire Attorney General on December 23, 2025. The firm is reviewing whether affected individuals have legal claims arising from the incident.
Barton Gilman LLP is a professional law firm that provides comprehensive legal services, meaning they routinely collect and store highly sensitive personal and proprietary information. In the course of their legal practice, the firm typically maintains client records that include names, contact information, Social Security numbers, financial data, and confidential case or matter-related documentation. This security incident was officially reported to the New Hampshire Attorney General in 2025 to comply with state notification requirements. If you have received a formal data breach notification letter from the firm, it indicates that your personal information may have been involved in this unauthorized access event. We recommend reviewing the letter carefully to understand the specific scope of the exposure and the identity protection services being offered.
If you were affected
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.
Did you receive a letter from Barton Gilman LLP?
A case review is free and confidential. Tell us about your letter and we will explain your options.