  Autonomous vehicles are on the horizon and will be transforming
transportation safety and comfort. These vehicles will be connected to various
external systems and utilize advanced embedded systems to perceive their
environment and make intelligent decisions. However, this increased
connectivity makes these vehicles vulnerable to various cyber-attacks that can
have catastrophic effects. Attacks on automotive systems are already on the
rise in today's vehicles and are expected to become more commonplace in future
autonomous vehicles. Thus, there is a need to strengthen cybersecurity in
future autonomous vehicles. In this article, we discuss major automotive
cyber-attacks over the past decade and present state-of-the-art solutions that
leverage artificial intelligence (AI). We propose a roadmap towards building
secure autonomous vehicles and highlight key open challenges that need to be
addressed.
