Only if you can find them. And only if they are in a country where you can get them.

They're state actors performing hybrid warfare.

Agree. There should be a worldwide effort against them by all governments everywhere.

How low must one go to do such a thing as attacking a blood bank? Of course, some of these low people are also low life governments.

We're 30-35-ish years too late.

The first time we found a provable case of malicious hacking, whether by individuals or nation-states, the result should have been the termination of that entity. Nothing says "stay out of my network" like a bloody head on a fencepost.