I get the distinct impression that cybersecurity training regimes on newer models is a) directly enhancing general debugging capabilities and b) directly increasing the tendancy to hedge, hide, and engage in deception generally.

I've stopped using Fable unless I'm doing debugging, or unless I'm working on code that is both difficult and shallow, in the sense that there are no real complex systems to hide behavior in, or opacity on my side to deal with. Opus is capable enough, and easier to trust. Fable is approaching a malicious program in terms of it's tendency to jump into doing a full day of work in the wrong way, ignoring instructions and being actively deceptive about covering it up.

Not an insider, and no specific data to back it up, but do we really need any? It's been a while since the first "emergent misalignment" paper(s) and all the related discussion. If there's any compelling answer to why/how the basic fundamental issue is even being addressed (and much less definitely fixed) I must have missed it.

Your not using models like Fable is not going to make them go away. These things are going to be the norm unless we do something about it. Imagine Fable in a robot.