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MonitoringMontana AG filing · December 12, 2025

Lydig Construction Reports Data Breach Impacting Employee Data

Lydig Construction, Inc. reported a data security incident to Montana regulators in December 2025, stemming from an event that occurred in June 2025. The breach potentially exposed sensitive personal and financial information of individuals. Affected parties should remain vigilant for signs of misuse of their data.

State
Montana
Breach date
June 21, 2025
Reported
December 12, 2025

What may have been exposed

  • Full Name
  • Social Security Number
  • Date of Birth
  • Wage and Compensation Information
  • Tax Return Information
  • Direct Deposit Account Details
  • Home Address
  • Driver's License Number

Lydig Construction, Inc., a commercial general contractor, reported a data security incident to the Montana Attorney General on December 12, 2025. The company stated that unauthorized access to its digital infrastructure occurred on or around June 21, 2025. This breach affects individuals whose personal information was held within the company's systems.

The specific technical nature of the breach was not detailed in public filings. Data security incidents in the construction sector often involve various forms of cyber intrusion, including ransomware or unauthorized access to corporate networks. Such events can compromise extensive digital records maintained for employees and business partners.

The exposed data categories include Full Name, Social Security Number, Date of Birth, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, Home Address, and Driver's License Number. The presence of such sensitive identifiers can elevate the risk of identity theft and financial fraud for those affected. Public filings from regulators often provide these specific data points.

Individuals who receive a notification regarding this incident from Lydig Construction, Inc. should monitor their financial accounts and credit reports for any suspicious activity. Consider placing a fraud alert or security freeze on credit files as a proactive measure. Regularly review statements from banks and other financial institutions, and be cautious of unsolicited communications requesting personal information.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

  • Freeze your credit

    Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.

  • Guard against tax fraud

    File your tax return as early as possible and consider requesting an IRS Identity Protection PIN so no one can file a fraudulent return in your name.

  • Watch your financial accounts

    Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.

  • Replace exposed ID documents

    Contact your state DMV or the issuing agency about replacing an exposed driver's license, passport, or government ID number.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

Source: Montana Attorney General filing

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