Mechanical Systems & Services Data Breach: SSNs Exposed
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By Join The Case · Published November 20, 2025 · Updated November 20, 2025 · 6 min read
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Dapeer Law, P.A., a top-rated class action law firm, is investigating the Mechanical Systems & Services data breach. If you received notice that your information was exposed during this breach, you may be entitled to compensation. It's free to join our investigation to see if we can help you recover.

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Mechanical Systems & Services Data Breach Lawsuit Investigation

If you recently received a data breach letter from Mechanical Systems & Services, you are not alone. Join the investigation to protect your rights and explore potential legal remedies.

What Happened?

On November 20, 2025, Mechanical Systems & Services, Inc. (Mechanical Systems & Services) filed a notice with the Massachusetts Attorney General disclosing a security incident. The company’s consumer notification letter, dated November 19, 2025, confirms that personal data belonging to one Massachusetts resident was accessed without authorization.

What Information Was Involved?

The breach exposed the following category of personally identifiable information (PII):

  • Social Security numbers

Company Response

According to the notice, Mechanical Systems & Services:

  • Reported the incident to federal law-enforcement agencies.
  • Notified appropriate state regulators.
  • Is offering 24 months of complimentary credit monitoring and identity-theft protection through TransUnion/Cyberscout.

Steps You Can Take Now

Impacted individuals may enroll in the free monitoring service within 90 days of the letter date by visiting the activation portal provided in the notification and using their unique enrollment code.

Additional recommended actions include:

  • Request free credit reports at AnnualCreditReport.com.
  • Consider placing a fraud alert or credit freeze with Equifax, Experian, and TransUnion.
  • Monitor financial statements for suspicious activity.
Download Official Breach Notice (PDF)

Key Dates

  • November 19, 2025 — Consumer notice mailed.
  • November 20, 2025 — Incident reported to Massachusetts Attorney General.

Company Overview

Mechanical Systems & Services, Inc. operates in the HVAC and construction sector and is a subsidiary of Crete United.

  • Website: mechsys.net
  • Contact: Online form | Assistance line 1-833-731-2390
  • Headquarters: 400 Stubbs Ave, Monroe, LA, USA
  • Founded: 1984
  • Employees: over 90
  • Industry: HVAC & Construction
  • Parent: Crete United

Frequently Asked Questions

I received a data breach letter from Mechanical Systems & Services — what should I do?

Follow the instructions in the letter, enroll in the free TransUnion credit-monitoring service within 90 days, and watch your financial accounts for unusual activity.

How do I submit a claim related to the Mechanical Systems & Services data breach?

Potential legal claims are under investigation. Complete the form on this page or contact our team to learn about your options.

Am I eligible to join a lawsuit against Mechanical Systems & Services?

You may qualify if your Social Security number was exposed. Eligibility depends on factors such as residency and resulting damages. Reach out for a free case review.

What information did the Mechanical Systems & Services breach expose?

The incident involved Social Security numbers.

Did Mechanical Systems & Services offer credit monitoring, and for how long?

Yes. The company is providing 24 months of free credit monitoring and identity-theft protection through TransUnion/Cyberscout.

How many people were affected by the Mechanical Systems & Services breach?

The notice filed in Massachusetts lists 1 affected individual in that state.

How can I get the official breach notice (PDF) for Mechanical Systems & Services?

You can download it directly from the Massachusetts Attorney General’s website using the button above.

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