LoneStar Truck Group/TAG Truck Center Data Breach Exposes Sensitive Personal Information Shamis & Gentile P.A., a class action law firm specializing in data breach cases, is investigating a recent cybersecurity incident involving LoneStar Truck Group and TAG Truck Center, a network of Freightliner and Western Star dealerships operating across the southern U.S. The breach, disclosed on May 28, 2026, impacted at least 1,725 individuals in Texas, with affected parties notified via U.S. mail. The exposed data includes names, addresses, and Social Security numbers, raising concerns over potential identity theft and financial fraud. LoneStar Truck Group and TAG Truck Center, which provide commercial truck sales, parts, and service in Texas, Tennessee, Arkansas, Mississippi, Missouri, Kentucky, Louisiana, and New Mexico, reported the incident to the Texas Attorney General as part of regulatory compliance. Legal teams are now reviewing the breach to determine eligibility for compensation, with investigations ongoing to assess the full scope of the incident and its impact on affected individuals.