> Cause not stated in filing
Hallisey & D’Agostino, LLP data breach investigation
Hallisey & D’Agostino, LLP has reported a data security incident to New Hampshire regulators as of April 17, 2026. While the specific details about the type of breach and the information involved remain largely undisclosed, this filing opens an inquiry into how your data may have been compromised and the company's handling of the incident.
- Filed
- April 17, 2026
- Regulator
- NH AG
- People affected
- Not stated
- File status
- Investigation Open
What the filing confirms
- Hallisey & D’Agostino, LLP reported the incident to the NH Attorney General.
Still unknown
- Which categories of personal information were taken. The filing does not list them.
- How many people were affected. The filing does not give a number.
- What caused the incident beyond the description in the filing.
- How the attackers got in, and whether basic safeguards such as multi-factor sign-in were in place.
Investigation notes
On April 17, 2026, Hallisey & D’Agostino, LLP, a company operating in New Hampshire, filed a report with state authorities acknowledging a data security incident. The official record confirms that a breach occurred, though it does not specify the nature of the attack or the number of individuals affected.
Crucially, the public filing does not detail what specific categories of personal information were compromised. This means individuals receiving notification letters are left to infer the extent of their exposure. When an organization fails to specify the exact data involved, it can complicate efforts for those affected to take targeted protective measures.
A data breach notification, even when sparse on details, initiates an investigation into the company’s security practices. Questions often arise regarding the safeguards Hallisey & D’Agostino had in place, how long unauthorized access persisted, and whether the notification was provided in a timely manner as required by law. Our review focuses on examining these aspects of the company’s conduct.
If you received a data breach notification from Hallisey & D’Agostino, LLP, it is prudent to remain vigilant. Monitor your accounts for any suspicious activity and consider placing fraud alerts with credit bureaus. Be wary of unsolicited communications, as data breaches can sometimes lead to increased phishing attempts.
Understanding your rights and potential recourse after a data breach can be complex. Consulting with a legal professional can help clarify what the available evidence implies for your situation. We are currently investigating this incident and offer confidential case reviews to individuals affected by the Hallisey & D’Agostino data breach.
What our attorneys examine
A cyberattack does not excuse a company from protecting the information it holds. We look at whether Hallisey & D’Agostino, LLP used reasonable security, how long it kept the data, and how quickly it told the people affected. Those questions decide whether a class action or individual claim is possible. Read more on how ransomware lawsuits work, or browse other incident files in NH.
Hallisey & D’Agostino, LLP data breach questions
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
Other open files in NH
- Janome America, Inc.New Hampshire Attorney General · Filed July 31, 2026Count not stated
- Sullivan Environmental ServicesNew Hampshire Attorney General · Filed July 31, 2026Count not stated
- City of New Britain, Inc.New Hampshire Attorney General · Filed July 30, 2026Count not stated
- New Hampshire Housing Yardi’s RentCafeNew Hampshire Attorney General · Filed July 30, 2026Count not stated
- Pocket FMNew Hampshire Attorney General · Filed July 30, 2026Count not stated
- Werth Wealth Management, LLCNew Hampshire Attorney General · Filed July 29, 2026Count not stated
Attorney advertising. An incident file reflects a public regulator filing and our review of it; it does not mean a lawsuit has been filed or that the company did anything unlawful. Submitting a review request does not create an attorney-client relationship.