GovernmentInvestigation Open

MasTecState Data Breach — Official Case File

MA filing|Reported Jun 9, 2026|7 data types exposed

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Quick Facts

State Filed
MA
Date Reported to AG
Jun 9, 2026
Date of Breach
Not disclosed
Records Affected
Not disclosed
Status
Investigation Open
Last Updated
Aug 8, 2026
Data Types Exposed
NameAddressSocial Security NumberDate of BirthEmployee ID NumberContact InformationDirect Deposit Information

Incident Overview

Government entities like MasTecState maintain records that are difficult to change once compromised — increasing long-term risk. According to a MA state filing, MasTecState experienced a data security incident affecting an undisclosed number of individuals, exposing Name and Address. This breach was recently disclosed and the window for legal action is open now.

Government agencies hold some of the most sensitive personal data — tax records, benefits applications, driver's license files, and identity verification information. A breach at a public agency like MasTecState means that information filed under legal compulsion, often unavoidable for residents, has been exposed without consent.

MasTecState appears to be a specialized technology and infrastructure services provider operating within Massachusetts. In the regular course of business, the company typically collects and stores sensitive information, including employee and contractor records, corporate credentials, and proprietary operational data. This data security incident was officially reported to the Massachusetts Attorney General in 2026. If you received a data breach notification letter from MasTecState, it means your personal information may have been involved in the security incident. This page provides an overview of the event and outlines the steps you can take to help protect your personal data.

Exposed Data — What's at Risk

Based on the data types reported in this filing:

Identity Theftcritical risk

Your SSN is the master key to your identity. Once exposed, criminals can open new lines of credit, take out loans, or file taxes in your name.

Physical Security Riskmedium risk

Home address exposure can enable mail theft, package fraud, and targeted phishing attacks that reference your known location.

Identity Verification Bypassmedium risk

Combined with a name and other leaked data, date of birth helps criminals pass identity verification questions at banks and government agencies.

Do You Qualify for Compensation?

You may have been affected by the MasTecState data breach if:

  • You received a written data breach notification letter from MasTecState
  • You are or were a customer, patient, or employee of MasTecState
  • Your information was held by MasTecState in MA

What the Law Gives You

Common categories of compensation in data breach class actions

Time & Inconvenience

Courts recognize that the time spent monitoring accounts, placing credit freezes, and dealing with the aftermath of a breach has real economic value. This category of damages is recoverable even without direct financial loss.

Credit Monitoring & Identity Restoration

Professional credit monitoring services cost $10–$40 per month. Identity theft restoration services, if needed, can cost hundreds of hours and thousands of dollars. Courts have awarded these costs as direct damages in SSN breach cases.

Statutory Minimum Damages

Several state data breach laws provide for statutory minimum damages — fixed amounts recoverable per affected individual regardless of actual loss. These provisions exist specifically to make legal action viable for victims who have not yet experienced direct harm.

Applicable State Law

This breach was reported under the Massachusetts Data Security Law (201 CMR 17.00), which mandates notification and establishes your right to seek damages.

Frequently Asked Questions

Do I need proof that my data was misused to file a claim against MasTecState?

No. Under Massachusetts Data Security Law (201 CMR 17.00) and federal law, the unauthorized exposure of your personal data — regardless of whether it has been actively misused — can be sufficient grounds for a claim. The breach itself is the injury.

How much does filing a claim cost?

Nothing. The Law Office of David S. Harris handles data breach cases on contingency — you pay zero upfront and owe nothing unless compensation is recovered.

My Social Security Number was exposed. What should I do right now?

Immediately place a free credit freeze at all three bureaus (Equifax, Experian, TransUnion). A freeze blocks new accounts from being opened in your name. Then file a complaint with the FTC at IdentityTheft.gov and contact our office — SSN exposure is one of the most serious breach types.

Is there a deadline to file a claim?

State statutes of limitations for data breach claims typically run 2–4 years from the date of the breach or its discovery. Because this breach was recently disclosed, the window is open — but acting early preserves your options and strengthens the case.

What if MasTecState offered me free credit monitoring after the breach?

Accepting free credit monitoring from MasTecState does not waive your right to pursue legal action unless you signed a specific release waiving claims. In most cases, victims who accepted monitoring can still file.

Do I need to have received a notice letter to be eligible?

Not necessarily. Many data breach victims are never notified directly. If your personal information was held by MasTecState during the relevant period, you may still qualify even without receiving a letter. A free eligibility review can confirm your status.

How long does a data breach class action lawsuit take?

Most data breach class actions resolve within 18 to 36 months, though timelines vary by court and complexity. Your participation requires minimal effort — typically completing a claim form. Our office handles all litigation; you are notified when a settlement is reached.

Received a notification letter from MasTecState?

Read our dedicated guide — what the letter means and what to do.

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This case file references a public filing made with the state filing in MA. This website is not affiliated with, endorsed by, or operated by any state government agency.

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