The automotive industry is rapidly evolving and the car is being transformed from a simple mode of transport to a personalized mobile information hub. All these new electronic functions bring great benefits to the driver, increasing comfort, convenience, safety and efficiency. But these features come with new risks, too. Modern vehicles feature wireless interfaces connect the in-vehicle systems of these ‘Connected Cars’ to external networks, which form entry points for hackers. This session will describe a proposal for a layered automotive security architecture providing a defense-in-depth approach to securing a vehicle including secure external interfaces, secure domain isolation, secure internal communication and secure software execution. In addition, the session will describe how all these security layers can be supported through the full vehicle life cycle of design, build, use and scrap.