Intelligent vehicles, equipped with on-board environmental perception systems and information terminals, have achieved information exchange with the external environment (such as people, vehicles, and roads), thereby possessing intelligent environmental perception capabilities. They can automatically analyze safety and dangerous states during driving, plan routes, and control the vehicle to travel along the planned path. However, the increase in internal and external connections exposes them to complex network security threats. Therefore, this article will explore the characteristics of the risks faced by intelligent vehicle information systems, with the aim of providing references for ensuring the safe and reliable operation of intelligent vehicles.