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Eversource Energy data breach

Incident readout

Company
Eversource Energy
Reported to
Maine Attorney General
Filed
May 21, 2026
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

Eversource Energy is a major utility company that provides electricity, natural gas, and water services to millions of customers. As a utility provider, the company maintains sensitive records including customer names, service addresses, and billing information, which often includes Social Security numbers and financial account details used for payment processing. In 2026, Eversource Energy officially reported a data breach to the Maine Attorney General, confirming that unauthorized parties may have accessed personal information stored within their systems. If you received a formal data breach notification letter from the company, it indicates that your personal data was potentially compromised during this 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 Maine or read what to do after a ransomware attack.

After the Eversource Energy incident: what to do and your options

What should I do after getting the Eversource Energy 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 Eversource Energy offer free credit monitoring?
Look for an enrollment code in your Eversource Energy 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 Eversource Energy over the data breach?
It depends on what was exposed, the law in Maine 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 Eversource Energy 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 Eversource Energy 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 Eversource Energy. 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 Eversource Energy data breach letter legit or a scam?
A notice from Eversource Energy in the mail matches the breach Eversource Energy reported to the Maine Attorney General on May 21, 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 Eversource Energy through a phone number or website you find yourself.
How much could a Eversource Energy data breach settlement or claim be worth?
There is no set amount, and no Eversource Energy 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 Maine

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.