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Cliff Viessman, Inc. Data Breach Lawsuit Investigation
Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Cliff Viessman, Inc data breach.
If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.
About Cliff Viessman, Inc
Cliff Viessman, Inc, also known as Viessman Trucking, is a family owned and operated transportation company based in Gary, South Dakota. Founded in 1961, the company specializes in the transport of food-grade bulk products throughout the United States and Canada.
The company operates five main divisions: tanker, live bottom, pneumatic (dry bulk), hopper and reefer. Products hauled include milk, dry sugar, cornstarch, corn sweetener and vegetable oil. With approximately 400 employees and terminals in multiple states, Cliff Viessman, Inc is one of the largest food-grade haulers in the country.
What happened?
On Aug. 5, 2025, Cliff Viessman, Inc became aware of suspicious activity within its IT network. An investigation revealed that a cybercriminal had gained access to certain systems and copied files from those systems. A review completed on Aug. 12, 2025 determined that the copied files contained sensitive personal and financial information.
The data breach compromised 3,367 individuals. CVI began notifying affected individuals by mail on Sept. 10, 2025.
Information Exposed
- Name
- Social Security number
- Driver's license number
Cliff Viessman, Inc reported the cybersecurity incident to multiple state authorities beginning on Sept. 10, 2025, including the Vermont, Montana and New Hampshire Attorney Generals' offices.
Your Rights and Next Steps
If you received a notification from Cliff Viessman, Inc about this data breach, it is important to know your rights and the steps you can take to protect yourself:
- Credit monitoring services: Enroll in the 12 free months of TransUnion Cyberscout single-bureau credit monitoring services, offered by the company. Affected individuals have 90 days to enroll after receiving their letter.
- Monitor your accounts carefully: Check your financial statements regularly for suspicious activity or unauthorized transactions. If you notice anything unusual, contact your financial institution immediately.
- Fraud alert and credit reports: A fraud alert informs creditors to take extra steps to verify your identity before opening new accounts in your name. Consumers are also entitled to one free credit report annually from each credit bureau. You can request a fraud alert or a credit report by contacting any one of the three major credit bureaus.
- Seek legal help: Lawyers are ready to help you understand your rights and pursue compensation.
You May Be Entitled to Compensation
If your information was exposed in the Cliff Viessman, Inc data breach, you may be eligible for compensation. Lawyers are ready to help individuals affected by this incident pursue claims for damages related to the breach.
To find out if you qualify and to take the next step in joining a lawsuit, complete the form below.
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