Save Big on Coursera Plus. 7,000+ courses at $160 off. Limited Time Only! Grab it Dive into a DEF CON 32 conference talk exploring the dramatic discovery and investigation of a critical backdoor in the XZ/liblzma library that threatened SSH servers worldwide. Follow the timeline from the initial alert by Microsoft engineer Andres Freund to OSS security, through the unraveling of a complex undercover operation involving a mysterious maintainer named Jia Tan. Learn about the technical intricacies of how the backdoor was implemented and could be exploited, the coincidental nature of its discovery, and the methodical process of how trust was gained within the project. Examine the broader implications for open-source security, including crucial lessons learned and potential improvements for preventing similar incidents in the future. Uncover the complete story behind this significant security incident that put the entire internet at risk and the fortunate circumstances that helped avoid a potentially devastating outcome.