Commissioned by the International Atomic Energy Agency (IAEA), cyber security experts at the AIT Austrian Institute of Technology are developing a special, virtual IT training and simulation platform which simulates extremely sensitive industrial control systems. This AIT Cyber Range allows new technologies, tools and processes designed to defend against cyber threats to be simulated, tested and trained in a realistic environment, and has been developed in response to the increasing digitalisation and networking of industrial control systems for nuclear power plants. It is unique in taking an integrated and practical approach to all the interacting factors – technology, organisation, and operation. This special approach to training and education enables operators of critical infrastructure to quickly develop the special skills needed to effectively counteract the growing threat of cyber-attacks.