Abstract: Nowadays, the market of Unmanned Aerial Systems (UAS) develops progressively with a lot of applications such as: infrastructure monitoring, law enforcement, environment research, goods transportation, etc. However, due to the lack of human observation, communication capacities, and protection, a UAS is an appropriate target for a criminal or a terrorist cyber attack. Therefore, risks related to the cyber-security need to be taken into account during the development of a UAS. ...