Same here, I used to have this image in my head of a eccentric entrepreneur pushing technology to the max with ‘fuck you money’.

Sure he said some crazy shit sometimes, but it kind of felt like he didn’t have much of a filter.

Around the time of the Thai cave thing this started to change, but I still gave him the benefit of the doubt until that point.

After that, things just went down hill…

Security through obscurity would be having a system connected to a network, but relying on a secret / unknown protocol to secure it.

Air-gapping a system is a real and very useful security method. That being said, it’s not enough by itself.

If you’re interested, have a look at past examples, like the recent work on breaking Tetra communication standard and Stuxnet.