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Commonwealth Trust Company data breach

Incident readout

Company
Commonwealth Trust Company
Reported to
New Hampshire Attorney General
Filed
September 22, 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

Commonwealth Trust Company appears to be a financial institution specializing in wealth management, fiduciary services, and asset custody. As a financial entity, the company typically collects and maintains highly sensitive personal and financial data, including government-issued identification numbers, investment records, and detailed banking information. This data breach was officially reported to the New Hampshire Attorney General in 2025, confirming that the security of client information was compromised. If you received a data breach notification letter from Commonwealth Trust Company, it indicates that your personal information was 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 protection services being offered to those affected.

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

After the Commonwealth Trust Company incident: what to do and your options

What should I do after getting the Commonwealth Trust Company 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 Commonwealth Trust Company offer free credit monitoring?
Any free monitoring Commonwealth Trust Company is offering will be described in the notice you received, along with an activation code and a sign-up deadline. Using the free service won't stop you from joining a lawsuit or settlement later.
Can I sue Commonwealth Trust Company 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 Commonwealth Trust Company 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 Commonwealth Trust Company 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 Commonwealth Trust Company. 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 Commonwealth Trust Company data breach letter legit or a scam?
A notice from Commonwealth Trust Company in the mail matches the breach Commonwealth Trust Company reported to the New Hampshire Attorney General on September 22, 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 Commonwealth Trust Company through a phone number or website you find yourself.
How much could a Commonwealth Trust Company data breach settlement or claim be worth?
There is no set amount, and no Commonwealth Trust Company 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.