Markel Insurance Data Breach Under Investigation After Exposure of Sensitive Personal Data Markel Insurance, a global specialty insurer and reinsurer based in Virginia, recently disclosed a data breach that may have compromised sensitive personal information. The incident, reported to the Texas Attorney General on July 7, 2026, exposed data belonging to at least 268 individuals in Texas, with potential impacts extending to other states, including Iowa. The breach involved Social Security numbers, driver’s license numbers, and medical information, though specific details about the cause or scope remain undisclosed. Affected individuals were notified via U.S. Mail. Class action law firm Shamis & Gentile P.A. is investigating the incident, citing potential eligibility for compensation for those impacted. The firm specializes in data breach litigation and is reviewing claims from affected consumers. Markel Insurance, part of the Markel Group Inc., has been operating since 1930, providing specialized coverage for complex risks across commercial and niche markets, including liability, property, marine, and trade credit insurance. The company’s operations span multiple platforms, including Markel Specialty, Markel Assurance, and Markel International.