Explore side channel attacks in 4G and 5G cellular networks through this 25-minute Black Hat conference talk. Discover how the fixed nature of paging occasions can be exploited as a side-channel by nearby adversaries to associate victims' soft-identities with their paging occasions. Learn about the ToRPEDO (TRacking via Paging mEssage DistributiOn) attack and its implications, including the ability to verify coarse-grained location information, inject fabricated paging messages, and mount denial-of-service attacks. Gain insights from speaker Syed Hussain on these critical security vulnerabilities in modern cellular networks.