Preface: A Russian-speaking outfit called DarkSide offered would-be computer crooks not just the tools, but also customer support, New York Times said.
My observation: My observation: Perhaps cyber criminals learn from practice. They know the system infrastructure weakness of industrial especially oil, powers supply facilities even logistic industry.
Remark: ransomware criminal will select dynamic cloud computing as a base. If victim web server is using IaaS service, it is most likely is their target.