Increased passenger flows at airports and the need for enhanced security measures from ever increasing and more complex threats lead to long security lines, increased waiting times, as well as often intrusive and disproportionate security measures that result in passenger dissatisfaction and escalating costs. As expressed by the International Air Transport Association (IATA), the Airports Council International, (ACI) and the respective industry, todays airport security model is not sustainable in the long term. The vision for a seamless and continuous journey throughout the airport and efficient security resources allocation based on intelligent risk analysis, set the challenging objectives for the Smart Security of the airport of the future. FLYSEC, a research and innovation project funded by the European Commission under the Horizon 2020 Framework Programme, developed and demonstrated an innovative integrated and risk-based end-to-end airport security process for passengers, while enabling a guided and streamlined procedure from landside to airside and into the boarding gates, offering for the first time an operationally validated innovative concept for end-to-end aviation security. With a consortium of eleven highly specialised partners, coordinated by the National Center for Scientific Research “Demokritos,” FLYSEC developed and tested an integrated risk-based security system with a POC (Proof Of Concept) validation field trial at the Schönhagen Airport in Berlin, and a final pilot demonstration under operational conditions at the Luxembourg International Airport.