20 years ago, owning up someone's voice mail was a funny joke (teenagers were literally owning up switching systems.) Today, we're all carrying HSMs in our pockets. Things are better, not worse.
Everything might be more secure, as you say, but there are so many more ways a small hole could be exploited to do damage now.
[0] https://www.popsci.com/scitech/article/2009-08/first-patient...
One only has to look at self-driving cars to disprove you.
Dan Geer also entirely disagrees with what you wrote [1] [2] and you're no Dan Geer, sorry to say..
† Sure, I just did, but I'm being upfront that it's a cheap and unfair thing to say. I'm human.
Please elaborate because I don't see how you can even remotely defend what you wrote.
Things have gotten better, not worse, and personally, if I was being more aggressive about the argument (which I guess I am now), I'd go further and say you can't have been paying any attention in the 1990s (or to the history of what happened in the 1980s) and think otherwise.
There were computers, telecommunications, dial-up modems, X.25 and private networks in the 90s but the degree of cohesion, sublimation and intra-connectivity wasn't anywhere close to what we have today. Consequently, the actor domain looked very different and concepts such as cyberwarfare weren't even in the public eye. Morris worm vs NotPetya. Sure, barrier to entry was very low compared to now. But, as Dan Geer has repeatedly shown, risk has grown tremendously even if the field has gotten a lot harder. You don't think that completely disproves you?