BACKGROUND

An autonomous vehicle may navigate along designated routes or between waypoints according to a control system's response to receiving a request from a user device to pick up the user at a location and provide transport to a destination. However, in some circumstances, a nefarious actor may attempt to take control of an autonomous vehicle. For example, the nefarious actor may use a computing device to send instructions to the autonomous vehicle, which the autonomous vehicle may interpret as being sent from the control system, or otherwise spoof data on which the vehicle relies for determining a trajectory. As such, the autonomous vehicle may navigate along a route indicated by the nefarious actor. For another example, a nefarious actor may use a computing device to take control of the control system. The nefarious actor can then use the control system to control actions of an entire fleet of autonomous vehicles.

