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Investigation OpenNH AG filing · May 15, 2025

DUO Broadband Confirms Data Breach with New Hampshire Filing

DUO Broadband, encompassing Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC, has notified New Hampshire authorities about a data breach. This incident, reported on May 15, 2025, suggests that personal information under their care may have been exposed, prompting an ongoing investigation into the specifics of the compromise.

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This breach is real, not a scam. Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband officially reported it to the NH Attorney General on May 15, 2025.

Reviewed by David S. Harris, Esq., data breach and class action attorney (Florida Bar No. 0112739). Free consultation: 786-306-7278

Received a Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband notification letter? Find out in minutes if you qualify for compensation.

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State
NH
Reported
May 15, 2025

DUO Broadband, also known as Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC, has officially disclosed a data breach, filing notice on May 15, 2025, with authorities in New Hampshire. This disclosure indicates that personal information under their care may have been exposed, and the incident is currently under investigation.

While specific details regarding the type of information involved are still emerging, any exposure of personal data can create significant risks for affected individuals. This includes the potential for unauthorized access to accounts, identity theft, or other forms of fraud. It's important to understand that even general personal information can be exploited.

If you receive a notification letter from DUO Broadband, it's crucial to review it carefully for any guidance they provide. As a general protective measure, consider placing fraud alerts on your credit files, regularly monitoring your financial statements and credit reports, and being wary of unexpected communications requesting personal details. You may also want to change passwords for online accounts, especially if you reuse them.

Understanding the full implications of a data breach and navigating your legal rights can be complex. You don't have to face this challenge alone. Our dedicated team is available to help you understand what this breach means for your personal security and discuss potential legal avenues.

We offer free case reviews to individuals impacted by data breaches, providing clear, straightforward advice on your options without obligation. Our goal is to represent your interests and seek accountability when your personal information is mishandled. Contact us to learn how we can support you through this process.

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.

Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband data breach lawyer, lawsuit and letter questions

Do I need a Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband data breach lawyer or attorney?
You don't need to pay to find out. Our data breach attorneys review notices like this one for free, and data breach cases are usually handled on contingency — no fee unless money is recovered for you.
Can I sue Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband 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 Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband 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 Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband. 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 Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband data breach letter legit or a scam?
A notice from Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband in the mail matches the breach Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband reported to the NH Attorney General on May 15, 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 Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband through a phone number or website you find yourself.
Did Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband offer free credit monitoring?
Look for an enrollment code in your Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband 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.
How much could a Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband data breach settlement or claim be worth?
There is no set amount, and no Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband 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.
Where can I see the official Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband breach notice?
Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband's report is published by the NH Attorney General: https://mm.nh.gov/files/uploads/doj/remote-docs/duo-county-telephone-cooperative-cumberland-cellular-broadband-20250515.pdf Compare it with the letter you received to confirm the dates and details match.
What should I do after getting the Duo County Telephone Cooperative Corporation, Inc. and Cumberland Cellular, LLC as DUO Broadband 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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