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MARIO SUSI & SON, INC. data breach investigation

Mario Susi & Son, Inc., a Massachusetts construction company, recently reported a data security incident to the state's Attorney General. This report confirms that personal information managed by the firm may have been exposed, raising concerns for affected employees, contractors, and vendors. We are currently investigating the circumstances of this breach and the potential legal implications for those impacted.

Filed
July 7, 2026
Regulator
Massachusetts AG
People affected
Not stated
File status
Investigation Open

What the filing confirms

  • MARIO SUSI & SON, INC. reported the incident to the Massachusetts Attorney General.

Still unknown

  • Which categories of personal information were taken. The filing does not list them.
  • How many people were affected. The filing does not give a number.
  • What caused the incident beyond the description in the filing.
  • How the attackers got in, and whether basic safeguards such as multi-factor sign-in were in place.

Investigation notes

On July 7, 2026, Mario Susi & Son, Inc., a Massachusetts-based construction and engineering firm, filed a notice with the state's Attorney General regarding a data security incident. While the specific details of the breach type remain unspecified in the public record, this filing confirms that an unauthorized party gained access to systems containing personal information.

Mario Susi & Son, Inc. handles extensive administrative, operational, and human resources data, including information for current and former employees, subcontractors, and vendors. This means the incident could involve various categories of your personal information that the company was responsible for protecting. The full scope of the information compromised is currently under investigation.

When personal data is exposed in a security breach, individuals face an elevated risk of identity theft, financial fraud, and other harms. Even if you haven't yet experienced any direct fraud, the mere exposure of your sensitive information can create long-term vulnerabilities. Understanding these risks is crucial for those who may have been affected.

Under Massachusetts law, companies like Mario Susi & Son, Inc. are obligated to implement reasonable security measures to protect the personal information they collect and store. A data breach strongly suggests a potential failure in these safeguards. Our investigation will examine the company's security practices, the duration of unauthorized access, and the timeliness of their breach notification.

If you receive a notification letter from Mario Susi & Son, Inc., it is important to review it carefully for any specific advice or services they may offer, such as credit monitoring. Beyond that, consider placing a fraud alert or security freeze on your credit reports. Continue to monitor your financial accounts and credit reports for any suspicious activity.

Victims of data breaches do not always need to wait for actual financial fraud to pursue legal recourse. The increased risk of identity theft and the loss of privacy are recognized harms. Our firm is currently investigating potential claims on behalf of individuals affected by this incident. We offer free, no-obligation case reviews to help you understand your legal options.

What our attorneys examine

A cyberattack does not excuse a company from protecting the information it holds. We look at whether MARIO SUSI & SON, INC. used reasonable security, how long it kept the data, and how quickly it told the people affected. Those questions decide whether a class action or individual claim is possible. Read more on how ransomware lawsuits work, or browse other incident files in Massachusetts.

MARIO SUSI & SON, INC. data breach questions

Is the MARIO SUSI & SON, INC. data breach letter legit or a scam?
A notice from MARIO SUSI & SON, INC. in the mail matches the breach MARIO SUSI & SON, INC. reported to the Massachusetts Attorney General on July 7, 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 MARIO SUSI & SON, INC. through a phone number or website you find yourself.
Did MARIO SUSI & SON, INC. offer free credit monitoring?
Any free monitoring MARIO SUSI & SON, INC. is offering will be described in the notice you received, along with an activation code and a sign-up deadline. Enrolling does not give up your right to bring a claim.
Is there a MARIO SUSI & SON, 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 MARIO SUSI & SON, 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 MARIO SUSI & SON, 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 MARIO SUSI & SON, 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 MARIO SUSI & SON, 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 MARIO SUSI & SON, INC. data breach settlement or claim be worth?
There is no set amount, and no MARIO SUSI & SON, 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 open files in Massachusetts

Attorney advertising. An incident file reflects a public regulator filing and our review of it; 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.