There are all these different areas of specialization. That's it. You have to be a specialist nowadays. There's no other way. I was an artist for a long time, but I was always into being a general practitioner. I did a little of this and a little of that. And nothing got me anywhere. You have to specialize. If you don't specialize, it takes you until you're about fifty years old before anybody notices that you're doing anything at all.
When people conceptualize a cyber-attack, they do tend to think about parts of the critical infrastructure like power plants, water supplies, and similar sort of heavy infrastructure, critical infrastructure areas. And they could be hit, as long as they're network connected, as long as they have some kind of systems that interact with them that could be manipulated from internet connection.