It seems to be short for "cybersecurity", and got first adopted by the military a while ago as the name of a new theatre of operations (along with land, sea, air...). More recently it has spread to industry as well.

It is worse than that, if you cyber someone you essentially talk dirty over a chat with them.

And that is definitely not something I'd like to do with a bot.

Now that you mention the original meaning of cybernetics, it makes cybersecurity a way more interesting word (security relating to the interface between humans and technology). Never thought of it that precisely.

Yeah, I've noticed it recently, too. I'd be interested to know where it started.

Make cyber not Cyber.

It makes no sense, but yes.