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Knoller Companies, Inc. data breach

Incident readout

Company
Knoller Companies, Inc.
Reported to
New Hampshire Attorney General
Filed
May 2, 2025
People affected
Not stated in the filing
Incident type in filing
Not stated
Our review
Investigation Open

Was this a ransomware attack?

The filing does not say ransomware was involved. We do not label an incident ransomware unless the company’s report says so. Whatever the cause, the steps to protect yourself and the legal question are the same.

What we know

Knoller Companies, Inc. appears to be a professional services or holding firm, likely managing complex business operations and sensitive corporate records. In the course of their professional activities, such companies typically collect and store extensive personal information, including names, Social Security numbers, government-issued identification, and detailed financial or tax records. This data breach was officially reported to the New Hampshire Attorney General in 2025, confirming that unauthorized parties may have accessed sensitive files held by the company. If you received a data breach notification letter from Knoller Companies, Inc., it indicates that your personal information was among the data stored within their systems at the time of the incident. We recommend reviewing the letter carefully to understand the specific scope of the exposure and the identity monitoring services being offered.

See every breach reported in New Hampshire or read what to do after a ransomware attack.

After the Knoller Companies, Inc. incident: what to do and your options

What should I do after getting the Knoller Companies, Inc. 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.
Did Knoller Companies, Inc. offer free credit monitoring?
Look for an enrollment code in your Knoller Companies, Inc. notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Signing up doesn't waive any legal rights you may have.
Can I sue Knoller Companies, Inc. over the data breach?
It depends on what was exposed, the law in New Hampshire 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.
Do I need a Knoller Companies, Inc. data breach lawyer or attorney?
Whether the company's systems were encrypted by ransomware or data was simply taken, the legal question is the same: did it protect your information the way the law requires? An attorney can review your notice for free, and these cases are usually handled on contingency.
Is there a Knoller Companies, Inc. 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 Knoller Companies, Inc.. 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 Knoller Companies, Inc. data breach letter legit or a scam?
A notice from Knoller Companies, Inc. in the mail matches the breach Knoller Companies, Inc. reported to the New Hampshire Attorney General on May 2, 2025. 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 Knoller Companies, Inc. through a phone number or website you find yourself.
How much could a Knoller Companies, Inc. data breach settlement or claim be worth?
There is no set amount, and no Knoller Companies, Inc. 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 breaches reported in New Hampshire

Attorney advertising. This page reflects a public regulator filing; 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.