With increasing interconnectedness of the manufacturing equipment and machines within the scope of industry 4.0, the attack risk also increases. Consequentially, it needs a better protection against cyber attacks. How can we secure cross-company value creation? How can IT security be designed efficiently in networked production facilities? These are new challenges that affect all production facilities and automation technologies with increasing digitalization. At the second meeting on the IT security of industrial plants, experts will discuss the topics of the future.