Barton Gilman LLP Files Data Breach Report in New Hampshire, 2025

New Hampshire's Barton Gilman LLP filed a data breach notification on December 23, 2025, indicating an incident led to the exposure of personal information. The nature of the breach and the specific data types involved are currently under investigation and remain unspecified in public records.

State: NH
Reported: December 23, 2025

Barton Gilman LLP, located in New Hampshire, has formally reported a data security incident through a public filing dated December 23, 2025. This notification indicates that personal information was exposed due to an unspecified breach type.

According to the filing, the incident is currently under investigation. This means that the specific categories of personal information affected, such as financial details, identification numbers, or other sensitive data, have not yet been publicly disclosed or confirmed.

Individuals who receive official breach notification letters from Barton Gilman LLP should carefully review the contents for specific details about the incident and any offered protective measures. It is important to be cautious of any unsolicited communications claiming to offer assistance related to this event, as these could be phishing attempts.

While the exact data types involved are not specified, it is generally prudent to remain vigilant. We recommend monitoring your financial accounts and credit reports for any unauthorized activity. Consider placing a fraud alert or security freeze on your credit if you are concerned.

This information is based on public filings with regulators, and additional details may emerge as the investigation progresses.

What to do if you were affected

These general steps can help limit the risk of identity theft and fraud after any data breach.

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.

Source: NH Attorney General filing

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