That reads like a scare story for MPs so they approve more money to some dodgy outfit that will save us all from the ever growing axis of evil...again.
The simple truth right now is that China, Iran, and North Korea, are actively hacking out companies and infrastructure. It’s a sort of Cold War.
What for?
You forgot Russia. /s Why do "companies and infrastructure" need to run "in a browser" ?
They could do with a dose of reality, IMHO.