On June 19, 2024, AutoNation, Inc. was notified by third-party provider CDK Global of a cyber incident affecting CDK's systems, including those supporting AutoNation's dealer management system (DMS) used for sales, service, inventory, CRM and accounting. AutoNation implemented containment and business continuity measures; dealerships remained open and operated via manual/alternative processes. Scope, nature, and full impact were not yet known at filing under Item 8.01.