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Investigation OpenNew HampshireFiled July 31, 2026

Understanding your Sullivan Environmental Services data breach notification letter

If a Sullivan Environmental Services letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.

This breach is real, not a scam. Sullivan Environmental Services officially reported it to the New Hampshire Attorney General on July 31, 2026.

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

Why you received this letter

Sullivan Environmental Services recently reported a data breach to the New Hampshire Attorney General, impacting individuals whose personal information was exposed. This incident means your private data may have been accessed without authorization, potentially leading to identity theft or other harms. Affected individuals may have legal options and can seek a free case review.

What to do after the letter

  1. Confirm the notice is genuine

    A legitimate Sullivan Environmental Services notice references the specific incident reported to the New Hampshire Attorney General and describes which categories of your information were involved. Compare the letter against the public filing before acting on any links or phone numbers it contains.

  2. Keep the letter — it is your proof of connection

    The notification letter is the document that ties your personal information to this incident. Keep the original and photograph it. If you later request a case review, this letter is the strongest evidence that you were among the affected individuals.

  3. Protect your accounts and credit

    Depending on what was exposed, consider a free credit freeze with all three bureaus, new passwords for reused credentials, and monitoring of financial statements. These steps are free and do not require you to wait for anyone's permission.

  4. Find out whether you have a claim

    Whether the Sullivan Environmental Services breach gives you a legal claim depends on the facts. A free, no-obligation case review will tell you where you stand — there is no cost and no commitment to find out.

This page summarizes a data breach reported to the New Hampshire Attorney General for informational purposes and is attorney advertising. It does not create an attorney-client relationship. DataBreachClassActions.com does not provide legal advice through this page.