What does it mean exactly? It's not a real place. It's a term from pre-mass-internet science fiction. It's not a term of art. It's not how people in the business talk about it. Talking about "cyber-" is nearly always a giveaway that somone doesn't know what they're talking about.
Computer security, yes. Or information security.
Part of the problem is that the UK government is trying to pass a law to enable their own use of "targeted equipment interference", i.e. state sponsored hacking. This prevents us having an honest conversation about who is defending against whom and how.
We could really do with a "cyber" Geneva convention globally prohibiting the use or secret development of hacking tools by governments against civilians, including their own civilians.
Cyber is a trendy cliche but its a useful shorthand to the problem area.
And it makes just as much sense."
No it doesn't. That's crazy. "Spiderspace"? The term "cyberspace" may be prone to abuse but it does mean something. "Cyber security" means something real. "Cyber-age" means something real. I'd prefer "computer" for the latter two, but it doesn't change the fact that "computer/cyber security" is a real problem. Nobody's going to hack into a spider and break all your grid electrical generators by over-revving them.
This is clearly just "I don't like X therefore all negative claims about X must be true". The claim that this speech makes just as much sense is so transparently ludicrous I can't imagine where else it comes from.