Explore the vulnerabilities and exploits in 5G protocols through this comprehensive conference talk from Shmoocon 2020. Delve into the evolution of mobile network security, from LTE to 5G, and examine real-world 5G traffic captures. Learn about pre-authentication message-based exploits, IMSI catching prevention, and the limitations of the 5G security architecture. Analyze potential adversary tactics and discover how certain LTE exploits remain applicable in 5G networks. Gain insights from Roger Piqueras Jover, a Senior Security Architect and wireless security researcher, as he presents findings on both non-standalone (NSA) and standalone (SA) 5G modes. Understand the challenges in capturing and analyzing 5G traffic, and explore topics such as SUPI protection, base station configuration sniffing, and RNTI-based tracking. Conclude with a discussion on the current state of 5G security and potential future improvements, including the use of digital certificates in cellular networks.