Originally Posted by VRPdommy

All nations know how to play with everyone's grid. It's not that hard. Same with other automated works in industrial and and public works.

I have known this for some time. But the willingness to use it changed dramatically after the first big one which was the stuxnet in iran.

Sometimes when you see strange 'outages' of all types, the first thing on my mind is that it was a test of theory to know they could do a segment without raising alarms.

But it is cheap warfare.
N Korea, Iran, Russia China and the U.S. are all doing it.
It's not that you will make and win a war with it, it's the fact that used with other attacks, it becomes hard to know what you could actually defend yourself from.
At a minimum, A element of confusion goes a long way at the right moment.

Honestly, at this point, if you were not identifying your adversary's weaknesses, you are not doing your nation service. We all do it.
Nobody anywhere in the world is safe from it. But really this stuff is quite old news now.
Much bigger things to worry about.