Terillium Data Breach Lawsuit

On October 28, 2025, Terillium reported a data breach involving the potential exposure of personal information due to a ransomware attack. If you were affected by this breach, this article provides an overview of the incident, what information may have been exposed, and steps you can take to protect yourself. You may also be eligible to join a class action lawsuit for compensation related to the breach.

Terillium’s Data Breach Investigation

On July 18, 2025, Terillium experienced a ransomware attack that was detected on the same day. The company acted swiftly to contain the breach, identifying and mitigating the source of the incident. By July 19, 2025, the attack was fully contained, and forensic analysis confirmed that no further suspicious activity or active indicators of compromise were present within the systems.

Although the breach was contained quickly, Terillium is notifying affected individuals out of an abundance of caution, as certain personal information may have been compromised during the attack. While no misuse of data has been reported, the company is actively working to ensure the continued security of its systems.

When Did This Breach Occur?

The ransomware attack occurred on July 18, 2025, and was fully contained by July 19, 2025. Terillium completed its initial investigation, confirming the security of its systems shortly thereafter.

What Information Was Breached?

The breach potentially exposed the following types of personal information:

• Name
• Address
• Social Security number

At this time, there is no evidence suggesting that this information has been misused, but Terillium is taking precautionary measures by notifying those potentially affected.

What You Can Do

If you were impacted by this breach, there are several actions you can take to protect yourself from potential identity theft and misuse of your personal data:

1. Monitor Your Accounts and Credit Reports: Regularly review your financial account statements, credit card reports, and credit reports for any unauthorized or suspicious activity. You are entitled to one free credit report annually from each of the three major credit reporting agencies.
2. Place a Fraud Alert or Security Freeze: To prevent identity thieves from opening accounts in your name, consider placing a fraud alert or security freeze on your credit files with the major credit bureaus. A fraud alert requires creditors to verify your identity before extending credit.
3. Report Fraudulent Activity: If you suspect that your personal information has been misused, immediately contact your financial institutions, credit card companies, and the appropriate authorities. You should also file a report with the Federal Trade Commission (FTC) and your state’s Attorney General.
4. Stay Updated on the Breach: Terillium may provide additional details and steps for those affected. Stay alert for any notifications or follow-up instructions from the company to learn more about how to protect your data further.

File a Data Breach Lawsuit Against Terillium