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Investigation OpenNH AG filing · October 24, 2025

Terillium Files Data Breach Notice with New Hampshire Regulators

Terillium has filed a data breach notification with the New Hampshire Attorney General, reporting an incident currently under investigation. The filing, dated October 24, 2025, does not specify the type of breach, the nature of the personal information involved, or the number of individuals affected.

State
NH
Reported
October 24, 2025

Terillium has submitted a data breach notification to the New Hampshire Attorney General, as officially recorded on October 24, 2025. This filing serves to alert state regulators about a security incident affecting personal information.

According to the public record, specific details regarding the type of breach event, such as a ransomware attack or system intrusion, remain unspecified. Likewise, the exact categories of personal information potentially exposed were not detailed in the notification.

The filing indicates that an investigation into the incident is ongoing. The breach date, as well as the number of individuals whose personal information may have been compromised, were also not disclosed in the publicly available documents.

Individuals concerned about their data should remain vigilant. General recommended steps include regularly monitoring financial statements and credit reports for any unauthorized activity. It is also wise to be cautious of unsolicited communications requesting personal details.

This information is derived solely from the official data breach filing made public with New Hampshire regulatory authorities. No further details beyond those reported in the filing are available at this time.

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.

What to know about the Terillium data breach

Where can I see the official Terillium breach notice?
Terillium's report is published by the NH Attorney General: https://mm.nh.gov/files/uploads/doj/remote-docs/terillium-20251024.pdf Compare it with the letter you received to confirm the dates and details match.
What should I do after getting the Terillium 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.
Is the Terillium data breach letter legit or a scam?
A notice from Terillium in the mail matches the breach Terillium reported to the NH Attorney General on October 24, 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 Terillium through a phone number or website you find yourself.
Did Terillium offer free credit monitoring?
Look for an enrollment code in your Terillium notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Using the free service won't stop you from joining a lawsuit or settlement later.
Can I sue Terillium 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.
Is there a Terillium 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 Terillium. 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.
How much could a Terillium data breach settlement or claim be worth?
There is no set amount, and no Terillium 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.
Do I need a Terillium 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.

Source: NH Attorney General filing

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