I’ve had a moderate interest in security for years and a mild interest in ICS for a short time. I may have to take a look at some of these ideas. No way I could bootstrap a business though :p
Interestingly I’ve seen a lot more regarding ICS security recently than I have in the past. I’m guessing this is partially because of somewhat recent big news items.
You are probably right, the news is certainly driving a lot of it, but also these types of attacks are increasing in frequency because of the proliferation of connection points between industrial networks and the internet. There's just more industrial stuff that's out there.
Interestingly I’ve seen a lot more regarding ICS security recently than I have in the past. I’m guessing this is partially because of somewhat recent big news items.