The Silent Supply Chain: Why Your Fourth-Party Vendor is Your Biggest Blindspot 

**CDK Global ransomware outage and supply-chain risk:** The report describes the BlackSuit ransomware attack on June 18, 2024 that forced CDK Global’s software offline—disrupting services to over 15,000 U.S. car dealerships—and uses the incident to argue that hidden third-, fourth- and nth-party dependencies create systemic risk that requires AI-driven continuous monitoring, dependency mapping, prioritized remediation, and dynamic risk frameworks.