Explore two novel attacks against social navigation services in this Black Hat conference talk. Delve into the creation of numerous reputable "bot drivers" and the manipulation of their reported locations using fake GPS data. Examine how these attacks compromise user privacy and influence routing decisions in Waze, a popular social navigation app with over 50 million users. Learn about techniques for tracking user locations, faking traffic jams, and manipulating the server-side routing algorithm. Discover how these attacks can be combined to influence driving directions for specific users. Investigate potential prevention methods and understand why effective mitigation may require additional carrier information.