Lydig Construction, Inc. data breach
Incident readout
- Company
- Lydig Construction, Inc.
- Reported to
- Montana Attorney General
- Filed
- December 12, 2025
- People affected
- Not stated in the filing
- Incident type in filing
- Not stated
- Our review
- Monitoring
Was this a ransomware attack?
The filing does not say ransomware was involved. We do not label an incident ransomware unless the company’s report says so. Whatever the cause, the steps to protect yourself and the legal question are the same.
Information listed in the filing
- 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
What we know
Lydig Construction, Inc. operates as a prominent commercial general contractor and construction management firm, overseeing complex building projects across the Pacific Northwest and surrounding regions. Because of the vast scale of their operations, the company routinely collects, processes, and stores an extensive volume of highly sensitive personal and financial data. This information does not solely belong to corporate executives; it encompasses comprehensive employment records for project managers, field engineers, laborers, subcontractors, and administrative staff. To manage payroll, employee benefits, project compliance, and vendor relationships, Lydig Construction maintains centralized databases loaded with confidential personally identifiable information (PII).
In 2025, Lydig Construction, Inc. reported a significant data security incident to the Montana Attorney General, alerting state regulators and affected individuals that unauthorized parties had compromised their digital infrastructure. While specific technical forensics continue to emerge, data security incidents within the construction and contracting sector frequently involve sophisticated ransomware deployments, credential harvesting, or unauthorized intrusions into corporate networks and third-party vendor platforms. Construction firms are uniquely vulnerable to such attacks due to the decentralized nature of their work environments, which often rely on remote field communications, shared digital blueprints, and complex supply chain networks that can serve as vectors for malicious actors seeking to exfiltrate proprietary corporate files and personal records.
The breach exposed a wide array of sensitive data categories, each carrying severe risks for the affected workers and business partners. Exposed information typically includes full names, Social Security numbers, dates of birth, home addresses, banking and direct deposit details, wage and compensation records, and tax-related documentation. When Social Security numbers and banking details fall into the hands of cybercriminals, victims face an immediate and long-term threat of identity theft, fraudulent credit card applications, unauthorized loans, and tax refund fraud. Furthermore, compromised direct deposit details can lead to immediate financial account takeover, leaving hardworking individuals vulnerable to devastating monetary losses that require months or years to resolve.
Operating as an employer and corporate entity, Lydig Construction, Inc. had a profound legal and ethical duty to safeguard the private data entrusted to its care. Under state data protection laws and the general legal standards governing corporate negligence, companies that collect PII are obligated to implement reasonable security measures, such as multi-factor authentication, network segmentation, regular vulnerability assessments, and robust encryption protocols. The occurrence of a widespread data breach strongly suggests a failure in these foundational security protocols. Under established legal principles, organizations that fail to maintain adequate safeguards can be held legally accountable for the resulting exposure of confidential consumer and employee data.
Receiving a data breach notification letter from Lydig Construction, Inc. serves as formal legal acknowledgment that your personal information was compromised due to corporate security failures. Legally, this notification establishes the necessary standing to participate in a class action lawsuit aimed at holding the company accountable for failing to protect your privacy. Affected individuals do not need to prove that they have already suffered actual financial fraud to seek legal redress; the increased risk of future identity theft and the loss of privacy are recognized harms. Our firm investigates these data breach matters on a strict contingency fee basis, meaning you pay absolutely nothing out of pocket, and we only collect a fee if we successfully recover compensation on your behalf.
See every breach reported in Montana or read what to do after a ransomware attack.
After the Lydig Construction, Inc. incident: what to do and your options
- What should I do after getting the Lydig Construction, 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.
- How many people were affected by the Lydig Construction, Inc. data breach, and what was exposed?
- The filing does not give a count of affected people and lists the following information as involved: 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. Your own letter is the best guide to what was exposed about you, since notices are usually tailored to each person.
- Did Lydig Construction, Inc. offer free credit monitoring?
- Look for an enrollment code in your Lydig Construction, Inc. notice. Companies that offer free credit monitoring after a breach usually include it there, with a deadline to activate. Because Social Security numbers are listed in this filing, identity monitoring and a credit freeze matter more than usual. Signing up doesn't waive any legal rights you may have.
- Where can I see the official Lydig Construction, Inc. breach notice?
- Lydig Construction, Inc.'s report is published by the Montana Attorney General: https://dojmt.gov/office-of-consumer-protection/reported-data-breaches/#mt-lydig-construction-inc-2025 Compare it with the letter you received to confirm the dates and details match.
- Can I sue Lydig Construction, Inc. over the data breach?
- It depends on what was exposed, the law in Montana 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.
- Do I need a Lydig Construction, Inc. data breach lawyer or attorney?
- Whether the company's systems were encrypted by ransomware or data was simply taken, the legal question is the same: did it protect your information the way the law requires? An attorney can review your notice for free, and these cases are usually handled on contingency.
- Is there a Lydig Construction, 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 Lydig Construction, 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.
- Is the Lydig Construction, Inc. data breach letter legit or a scam?
- A notice from Lydig Construction, Inc. in the mail matches the breach Lydig Construction, Inc. reported to the Montana Attorney General on December 12, 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 Lydig Construction, Inc. through a phone number or website you find yourself.
- How much could a Lydig Construction, Inc. data breach settlement or claim be worth?
- There is no set amount, and no Lydig Construction, 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. The filing lists Full Name, Social Security Number, Date of Birth as involved. Keep receipts and records; they're what damages claims are built on.
Other breaches reported in Montana
- MemberSource Credit UnionMontana Attorney General · Filed May 5, 2026Count not stated
- MemberSource Credit UnionMontana Attorney General · Filed May 5, 2026Count not stated
- MemberSource Credit UnionMT Attorney General · Filed May 5, 2026Count not stated
- GrayRobinson P.A.Montana Attorney General · Filed April 24, 2026Count not stated
- GrayRobinson P.A.Montana Attorney General · Filed April 24, 2026Count not stated
- GrayRobinson P.A.MT Attorney General · Filed April 24, 2026Count not stated
Attorney advertising. This page reflects a public regulator filing; 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.