The MOSARIS Common Laboratory- Methods and Tools for Risk Analysis of Smart-Grids) aims to build an innovative environment dedicated to assistance for conducting security risk analysis in the domain of industrial networks like “Smart-Grids”. The proposed program deals with security of cyber-physical systems and critical infrastructures, such systems which include both classical industrial infrastructure and NTIC (New technologies of Information and communication). Considering the high potential of development of such systems in the near future as well as the implied challenging issues both in the economical, strategic and global security; it is necessary to propose new analysis and securisation approaches adapted to this context and supported by efficient tools. The analysis culture was until now conducted according to different manners into two worlds: the world of industrial systems and the world of information systems. It is attested that the introduction of NTIC within industrial infrastructures raises new risks and increases their vulnerabilities. Security analyses must thus be adapted for this new context in order to get a better control on the overall aspects of the vulnerabilities inherent to such systems including possible interactions between security goals and other criteria, as well as the follow up in the time and accompaniment of system evolutions. Conducting such studies was until now largely supported by human expertise; this will soon no longer be possible. It becomes necessary to support security analysts with new methodologies supported by tooling devoted to this new context. The objective of the collaboration is to propose methods and the realization of a software environment dedicated to such problem and compatible with standards like ISO/IEC 27005 or guidelines such as the Ebios methodology, improved to take into account the specificities of this new context. This tool will be designed to be flexible and progressively enriched. This realization will be made possible by the cooperation of two expertises: • The expertise of CoESSI a consulting company in security of information systems that has also a great competence in the domain of Smart-Grids. • The expertise of the Laboratoire d’Ingénierie des Systèmes Embarqués (LISE from CEA), au sein du CEA) in the domain of system modeling and analysis. In particular the Laboratory has experience in multi-criteria evaluation and safety analysis of embedded systems. The objective is to enrich the methodological approaches developed by the tow partners and to design and develop software tools that will permit to CoESSI to develop its activity in the domain through an automation and improvement of current practices in systems security analysis. These tools will rely on the open-source system modeling framework developed within the laboratory: Papyrus (www.eclipse.org/papyrus). They will permit to conduct security risks analysis from system models and dedicated knowledge bases coming from the expertise of security analysis experts in the project. In a first stage, a first methodological approach inspired from the current practice of CoESSI will be implemented and experimented on case studies. The creation of the laboratory intends to provide a cross-fertilization locus to improve progressively the methodologies supported by the tool. In the future more dynamic strategies will be supported. Tools developed will be exploited by the CoESSI society within its consulting activity and will be commercialized as a complementary support for its clients.