This line of research includes the design and the development of models, methodologies and tools for the analysis, verification, and simulation of the security and trust properties of complex communication environments, with particular emphasis to the Future Internet scenario.  The high dynamicity and variety of ICT distributed systems, as well as their inter-dependencies and the multiplicity of the possible application scenarios, quest the need for security tools able to discover possible threats and risks, starting from the very design phase. When it is  not possible to predict misbehavior in a complex system, the goal is to discover the attacks, and then re-designing the structure of the analysis target.