(and another subcontractor Clinical Pathology Laboratories, Inc. of Austin Texas) showed a high rate of errors in analysis of samples which led to lawsuits and a government inquiry. Quest and the Irish government continue to settle the resulting lawsuits. On June 3, 2019, Quest announced that American Medical Collection Agency (AMCA), a billing collections service provider, had informed Quest Diagnostics that an unauthorized user had access to AMCA’s system containing personal information AMCA received from various entities, including from Quest. AMCA provides billing collections services to Optum360, which in turn is a Quest contractor. AMCA later went bankrupt after the breach. References External links Medical technology companies of the United States Companies listed on the New York Stock Exchange American companies established in 1967 Companies based in Hudson County, New Jersey Secaucus, New Jersey 1967 establishments in New York City Corning Inc. Life sciences industry Health care companies based in New Jersey 1982 mergers and acquisitions Corporate spin-offs