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Investigation OpenNH AG filing · April 17, 2026

Hallisey & D’Agostino LLP Notifies Regulators of Data Incident

Hallisey & D’Agostino, LLP recently filed a notice with regulators in New Hampshire regarding a data security incident. The specific details about the nature of the breach and the types of personal information involved remain under investigation. Individuals who receive a notification should review it carefully for guidance.

State
NH
Reported
April 17, 2026

Hallisey & D’Agostino, LLP, a New Hampshire-based firm, has submitted a formal notification to state regulators concerning a data security event. This disclosure, dated April 17, 2026, initiates the public record of an incident where personal information may have been accessed without authorization.

As of the filing date, the precise details surrounding the breach type and the categories of data involved are not specified in the public record. The firm has indicated that an investigation into the incident is ongoing to determine its full scope and impact. This information comes from public filings made with state authorities.

Those who receive a direct notification letter from Hallisey & D’Agostino, LLP are advised to read it thoroughly. This official communication should provide specific details pertaining to their situation, including any information that may have been affected and steps recommended by the firm. The public filing serves as a confirmation of such an event.

To protect themselves, individuals should remain vigilant for unusual activity across their online accounts and financial statements. Consider enabling multi-factor authentication wherever available and changing passwords for important services. While specific data types are unconfirmed, these general security practices are always advisable after any data incident.

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.

Hallisey & D’Agostino, LLP breach filing: questions and answers

Where can I see the official Hallisey & D’Agostino, LLP breach notice?
Hallisey & D’Agostino, LLP's report is published by the NH Attorney General: https://mm.nh.gov/files/uploads/doj/remote-docs/hallisey-d-agostino-20260417.pdf Compare it with the letter you received to confirm the dates and details match.
Is there a Hallisey & D’Agostino, LLP data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against Hallisey & D’Agostino, LLP. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
Is the Hallisey & D’Agostino, LLP data breach letter legit or a scam?
A notice from Hallisey & D’Agostino, LLP in the mail matches the breach Hallisey & D’Agostino, LLP reported to the NH Attorney General on April 17, 2026. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact Hallisey & D’Agostino, LLP through a phone number or website you find yourself.
Can I sue Hallisey & D’Agostino, LLP over the data breach?
It depends on what was exposed, the law in NH and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.
How much could a Hallisey & D’Agostino, LLP data breach settlement or claim be worth?
There is no set amount, and no Hallisey & D’Agostino, LLP settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. Keep receipts and records; they're what damages claims are built on.
Did Hallisey & D’Agostino, LLP offer free credit monitoring?
Any free monitoring Hallisey & D’Agostino, LLP is offering will be described in the notice you received, along with an activation code and a sign-up deadline. Enrolling does not give up your right to bring a claim.
Do I need a Hallisey & D’Agostino, LLP data breach lawyer or attorney?
An attorney can read your notice and tell you whether a claim makes sense. A case review here is free, and data breach cases are usually handled on contingency, so there is no upfront cost.
What should I do after getting the Hallisey & D’Agostino, LLP data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.

Source: NH Attorney General filing

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