Industrial and automation systems from the corporate IT perspective for a long time have been deserted islands because, these were mainly isolated systems. While this is largely still the case, through the increasing use of IT standards industry systems with its stand-alone solutions are more and more involved in the internal office networks, or even connected to the Internet. Especially the transition to the so called “Industry 4.0” vision bears new requirements and challenges for industry systems - particularly in the area of security. For more interconnectedness also means greater security needs. Industry 4.0 (smart factory, factory of the future) means that machinery and equipment gain the ability to adapt their behavior through self-tuning and reconfiguration to changing conditions. The goal is highly optimized processes that produce high quality products tailored to individual customer needs. In such manufacturing processes of the future, for example, a large number of ...