In the episode "Threat Targets" of the CybersSec First Responder course, Daniel talks about why a threat actor might want to go after critical infrastructures but I'm still not sure I understand the reasons why. He mentions that people are often impacted in the fallout of such an attack or that hitting the power infrastructure of a country would really impact a country. So I'm confused, what are the possible reasons? Can terrorism be a motivation? Could it be that a country would just want to hit the infrastructure of another country to hit their economy? And if they wanted to hit the communications infrastructure, is it because they want to conceal something or prevent officials from communicating with each other?
Why would a threat actor go after critical infrastructures?
I hope all is well. Great question !! The answer(s) can be any of the things you have identified, and many others as well. The reality of the targeting of critical infrastructure is that it is often a politically motivated activity at some level, and because it does require resources that are beyond the level of individuals it is usually the domain of nations state's and terror organizations.
There are no absolutes in this kind of area, but that is the "typical" threat actor profile that is found to be behind many of these actvities.