Earlier quoted context omitted.
Or they have assets working at Apple... or they hired an ex-Apple employee... etc. That's the problem with this sort of security through obscurity; it's only secure as long as the people who know about it can keep it secret.
I don't think hiring an ex-Apple dev would let you get the needed sbox unless they stole technical documentation as they left. So it either has to be stolen technical docs, or a feature that was put there specifically for their usage. The fact that the ranges didn't appear in the DeviceTree is indeed a bit suspicious, the fact that the description after being added is just 'DENY' is also suspicious. Why is it OK to d…
My theory is that defensive cyber security is so hard that it's literally easier to hack the entire world(with a focus on security people) to see if anyone has breached your systems.