The SolarWinds Hack of 2020 stands as one of the most sophisticated cyberattacks in history, shaking governments, corporations, and cybersecurity experts alike. This talk delves into the intricacies of the attack, from the initial compromise of SolarWinds' supply chain to the cascading effects on global networks. We’ll explore how advanced persistent threat (APT) actors exploited vulnerabilities, the failure points that allowed them to infiltrate over 18,000 organizations, and the broader implications for supply chain security.