Quest Diagnostics Warns Nearly 12 Million Patient Records May Have Been Breached

PITTSBURGH, Pa.(KDKA)- Quest Diagnostics is warning nearly 12 million customers about a possible data breach involving their personal information.According to a statement released Monday, Quest’s billing collections service provider, American Medical Collection Agency (AMCA), notified them that an unauthorized user had access to AMCA’s system containing personal information AMCA received from various companies, including Quest. AMCA provides billing collections services to Optum360,