This is a long-standing issue that a lot of people are aware of but fixing it is difficult. I've written and presented on the topic a few times, see: https://bl

This is a long-standing issue that a lot of people are aware of but fixing it is difficult. I've written and presented on the topic a few times, see: https://blog.shodan.io/state-of-control-systems-in-the-usa-2015-05/ https://blog.shodan.io/state-of-control-systems-in-the-usa-2...