Harnish Group Data Breach Lawsuit Investigation
Current and former employees of Harnish Group are now learning their personal data was posted online following a cyber-attack discovered in November 2025. If you received a breach notification letter, you may qualify for no-cost legal help and identity-theft resources. Contact our data-breach team for a free, confidential case review.
Download Official Breach Notice (PDF)Key Facts of the Harnish Group Data Breach
- Breach discovered: November 11, 2025
- Data publicly posted: December 9, 2025
- Notice filed with Maine Attorney General: December 31, 2025
- Information exposed: First and last name, Social Security number
- Affected population: Current and former employees (exact count not disclosed)
- Identity-protection offer: Two-year Norton LifeLock subscription
What Happened?
On November 11, 2025, Harnish Group Inc. (“Harnish Group”) detected unauthorized activity in its network that led to the disclosure of employee Personal Identifiable Information (PII). A subsequent forensic investigation confirmed that an attacker accessed the network, obtained files containing sensitive data, and later publicly posted those files on December 9, 2025.
Cyber-security consultants hired by Harnish Group identified the entry point, the account exploited, and the techniques used. The company reports it has “completed all changes to our network to prevent this attack from reoccurring.”
Data Exposed
The review of leaked documents revealed the following employee PII was disclosed:
- First name
- Last name
- Social Security number
Steps the Company Is Taking
Harnish Group states it:
- Engaged external forensic experts to investigate and remediate the breach.
- Implemented additional safeguards recommended by those experts.
- Partnered with Norton LifeLock to provide a complimentary two-year identity-theft monitoring subscription.
What You Can Do Now
Even if you enroll in the free Norton LifeLock service, the breach notice urges affected employees to take these additional precautions:
- Place a fraud alert with Experian (1-888-397-3742), Equifax (1-800-525-6285) or TransUnion (1-800-680-7289).
- Obtain and review free annual credit reports at AnnualCreditReport.com or by calling 1-877-322-8228.
- Monitor credit reports for unfamiliar accounts or inquiries and report any suspicious activity immediately.
Lawsuit Investigation: Protect Your Rights
Employees whose Social Security numbers were exposed may incur costs related to credit monitoring, tax-refund fraud, or other identity-theft risks. Our firm is investigating whether Harnish Group employed reasonable data-security measures under state and federal law. You may be entitled to compensation for out-of-pocket losses and time spent responding to the breach.
To discuss eligibility, complete our short intake form or call the number in your notification letter.
Company Overview
Harnish Group Inc. is a family-owned construction-equipment company founded in 1929 and headquartered at 17035 W Valley Hwy, Tukwila, Washington, United States. It employs roughly 1,000 people and operates through the NC Machinery brand.
- Website: ncmachinery.com
- Industry: Construction / Heavy Equipment
- LinkedIn: linkedin.com/company/harnish-group-inc-
Frequently Asked Questions
- I received a data breach letter from Harnish Group — what should I do?
- Enroll in the free two-year Norton LifeLock monitoring service, place a fraud alert with a credit bureau, and review your credit reports for any suspicious activity. Contact our firm to discuss your legal rights.
- How do I submit a claim related to the Harnish Group data breach?
- Fill out our online case-evaluation form or call the number provided in your notice. Our attorneys will review your situation and advise whether you qualify to join the lawsuit investigation.
- What information did the Harnish Group breach expose?
- Your first and last name and Social Security number were identified in the files that were publicly posted.
- Did Harnish Group offer free credit monitoring, and for how long?
- Yes. The company is offering a complimentary two-year subscription to Norton LifeLock identity-theft monitoring.
- How many people were affected by the Harnish Group breach?
- The exact number of impacted employees has not been disclosed in the public notice filed on December 31, 2025.
- How can I get the official breach notice (PDF) for Harnish Group?
- You can download the document directly from the Maine Attorney General’s website using the button near the top of this article.
