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Got a notice from The May Institute, Inc.? Here’s what to do.

The May Institute, Inc. told the Massachusetts Attorney General that people’s information was exposed. If you got a letter, work through the steps below.

Your checklist

  1. 1

    Keep the letter

    Save the notice from The May Institute, Inc. and its envelope. The date you were told can matter for legal deadlines.

  2. 2

    Freeze your credit

    The filing does not list what was taken, so play it safe. A free freeze at Equifax, Experian and TransUnion stops new accounts being opened in your name.

  3. 3

    Change reused passwords

    Change any password you used with this company or reused elsewhere, and turn on two-factor sign-in.

  4. 4

    Get a free claim review

    Our legal team checks whether you can be paid for this breach. No fee unless you recover.

Step 4: free claim review

Tell us you got the The May Institute, Inc. notice. An attorney, not a call center, reads it and tells you plainly whether you have a claim.

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  • Reply within 24 hours

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About the The May Institute, Inc. breach

Reported to
Massachusetts Attorney General
Date filed
August 14, 2025
People notified
Not stated
Cause in filing
Not stated

The May Institute, Inc. is a prominent, nationally recognized nonprofit organization dedicated to providing educational, rehabilitative, and behavioral healthcare services to individuals with autism spectrum disorder (ASD), developmental disabilities, and behavioral health needs. Operating numerous schools, residential facilities, and clinical service centers primarily across Massachusetts and the Northeast, the organization serves vulnerable populations ranging from young children to adults. Because of the comprehensive, lifelong nature of their care and educational programs, The May Institute maintains vast repositories of deeply sensitive personal, developmental, medical, and financial information for the patients, students, families, and staff members they serve. In 2025, The May Institute, Inc. reported a significant cybersecurity incident to the Massachusetts Attorney General's office, alerting individuals and regulatory authorities to an unauthorized compromise of its network environment. While the exact vector of the breach remains subject to ongoing forensic investigation, incidents impacting healthcare and behavioral service providers typically involve sophisticated external threat actors exploiting network vulnerabilities, deploying ransomware, or infiltrating internal databases containing legacy and active electronic health records. Given the interconnected nature of modern clinical and educational administration, such compromises frequently expose centralized administrative systems where vast amounts of personnel and client data are stored in unified repositories. The exposure resulting from this security incident encompasses a dangerous aggregation of personally identifiable information (PII) and protected health information (PHI). For the individuals whose records were compromised, the leaked data likely includes full names, dates of birth, Social Security numbers, clinical diagnoses, treatment history, health insurance details, and internal identification numbers. Each category of exposed data carries severe, long-term risks. Social Security numbers and dates of birth provide the exact foundation needed for comprehensive identity theft and fraudulent credit openings. Simultaneously, the leakage of behavioral healthcare, clinical diagnosis, and treatment records exposes individuals and their families to targeted medical fraud, insurance manipulation, and profound invasions of personal privacy that cannot be undone with a simple password reset. As an entity entrusted with highly sensitive health, educational, and employee records, The May Institute, Inc. was legally bound by strict federal and state regulatory frameworks, including the Health Insurance Portability and Accountability Act (HIPAA), the Massachusetts Data Privacy Law (201 CMR 17.00), and related statutory mandates. These laws impose rigorous standards for the safeguarding of electronic protected health information and PII, requiring robust encryption, continuous network monitoring, access controls, and comprehensive employee training. A security incident of this magnitude strongly indicates potential systemic failures in meeting these legal and administrative obligations, suggesting that existing data security measures were inadequate to repel modern, persistent cyber threats. Receiving a data breach notification letter from The May Institute, Inc. is a formal legal admission that your private, sensitive data was compromised due to corporate negligence. Under Massachusetts law and established class action jurisprudence, the receipt of such a letter provides you with the legal standing necessary to participate in a class action lawsuit and seek financial accountability. You do not need to wait until you experience actual financial loss or identity theft to take legal action; the increased risk of future harm alone establishes a valid claim. Our firm is actively investigating this data breach and evaluates all cases on a strict contingency-fee basis, meaning you pay nothing out of pocket and owe no legal fees unless we successfully recover compensation on your behalf.

Full ransomware checklist

The May Institute, Inc. data breach questions

Is the The May Institute, Inc. data breach letter legit or a scam?
A notice from The May Institute, Inc. in the mail matches the breach The May Institute, Inc. reported to the Massachusetts Attorney General on August 14, 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 The May Institute, Inc. through a phone number or website you find yourself.
Did The May Institute, Inc. offer free credit monitoring?
Any free monitoring The May Institute, Inc. is offering will be described in the notice you received, along with an activation code and a sign-up deadline. Signing up doesn't waive any legal rights you may have.
Is there a The May Institute, Inc. 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 The May Institute, Inc.. 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.
What should I do after getting the The May Institute, Inc. 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.
Do I need a The May Institute, Inc. 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.
Can I sue The May Institute, Inc. over the data breach?
It depends on what was exposed, the law in Massachusetts 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.
How much could a The May Institute, Inc. data breach settlement or claim be worth?
There is no set amount, and no The May Institute, Inc. 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 notices sent in Massachusetts

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