The KYPO - Cyber Exercise & Research Platform (KYPO) is unique environment for research and development of new methods to protect critical infrastructure against cyber attacks. A developed virtualized environment (running in the CERIT-SC cloud infrastructure) is used for simulation of complex cybernetic attacks against critical infrastructure and analyze their behavior and impact on the infrastructure. The KYPO will serve for research and development of new security tools and methods. In addition, it will be used for educating members of security teams.