With the growing diffusion of IoT devices and systems also in industry (Industrial Internet of Things - IIoT), there is the need to analyze and understand the resulting cyber risks and how to minimize them. To do this, it is necessary to learn more about these devices and their use, so that possible solutions can then be explored. In this thesis, the main focus was on how to monitor these devices using a Security Operation Centre (SOC). For this reason, the basic functioning of a SOC and its components was explained. It was also briefly mentioned how the increasing use of artificial intelligence and machine learning could affect it.