After 6 years, I have returned to the world of operating technologies. One of my main concerns at that time regarding the use of new technologies was to seek access control via the network to the different devices that make it up, because unlike the world of information technologies where access is sought to be widespread and there are multiple ways to perform access control at the application and network level, the world of industrial control has limitations depending on the version of the supervision and control protocols that are supported.
Article Link: https://isc.sans.edu/diary/rss/30000