The aviation industry is constantly striving to improve its efficiency and service quality. Hence, it works with innovative technological advancements. Yet, this integration of new technologies comes at the cost of a deeper vulnerability to cyber threats. Cyber-attacks can be directed at any of the many aircraft systems that are necessary for safe and smooth flights. And many such systems are part and parcel of the aircraft. This includes everything from navigation systems to telecommunication and information-measuring devices that are on board.

The information channels for data exchange between control systems and the onboard systems of an aircraft are particularly easy targets for hackers. Hackers can substitute data on these channels or feed false control commands. This information data in control channels are therefore an object of control and require serious protection against possible hacker attacks.