Universal Plant Services Breach: 315GB Data Compromised

Universal Plant Services LLC, an oil and energy services company based in Deer Park, Texas, disclosed a data breach that involved unauthorized access to its computer network in June 2026.

The breach was reported to the attorneys general offices of California, Massachusetts and Vermont. The company first discovered the breach.

On June 12, 2026, the company first identified suspicious activity on its computer network. An unauthorized individual accessed data within the network over a five-day window, from June 8, 2026, through June 12, 2026.

Upon detection, the company brought in third-party forensic specialists to investigate.

On June 30, 2026, a ransomware group called Chaos posted on a dark web forum, taking responsibility for the attack. The group stated it had obtained 315 GB of the company's data.

According to the dark web posting, the compromised data reportedly included financial and accounting records (such as audits, tax filings, payroll and bank transactions), human resources files containing personally identifiable information (including Social Security numbers, home addresses and dates of birth), confidential employee health records, corporate and legal documents, and operational data including proprietary procurement records and project proposals.

Universal Plant Services completed its review of the affected data on July 14, 2026. The company determined that the personally identifiable information potentially exposed included first and last names, Social Security numbers, driver's license numbers and financial account information.

Universal Plant Services' response to the breach

Universal Plant Services is offering affected individuals 24 months of complimentary identity monitoring services through Kroll.

Affected individuals must enroll themselves by visiting Kroll's enrollment website. Each affected person received a unique membership number in their notification letter to use during enrollment.

Universal Plant Services has also set up a dedicated call center for questions related to the breach. Affected individuals can reach it by calling 844-958-8964 between 9 a.m. and 6:30 p.m. Eastern Time.