I hope our digital systems are robust

[Barry]

I was musing this morning wondering what would happen in the case of a really bad cyber attack that took out all Internet and digital systems, and I hope our digital systems are robust enough for this not to happen.
We could do nothing at all without a personal visit.
All computer controlled systems would go down. That means electricity goes off.
No phones will work.
No Internet, text, WhatsApp.

Ham Radio enthusiasts might set up RayNet type emergency stations but digital comms, i.e. Police, Fire Ambulance would all be down.

I have no idea how many would survive.