In this episode of Cybersecurity, host Daniel Cole examines the NotPetya cyberattack of June 2017, which caused over $10 billion in global damage and fundamentally changed cybersecurity landscape. Initially appearing as ransomware, NotPetya was actually a destructive wiper malware attributed to Russian military intelligence that targeted Ukraine but spread worldwide. The attack exploited the EternalBlue vulnerability through corrupted MEDoc accounting software updates, crippling major corporations including Maersk, FedEx, and Merck. Unlike traditional ransomware, NotPetya's encryption was irreversible, designed purely for destruction rather than profit. The episode explores the attack's technical methodology, global impact on supply chains, and its significance as a turning point in state-sponsored cyber warfare. We discuss the unprecedented international attribution efforts, the role of leaked NSA exploits, and how NotPetya demonstrated the interconnected vulnerability of modern digital infrastructure. This devastating attack highlighted critical issues around cyber weapon collateral damage, international law in cyberspace, and the challenges of deterrence against nation-state actors. Essential listening for cybersecurity professionals, business leaders, and anyone interested in understanding modern cyber threats and their real-world consequences in our digitally connected global economy.