as you say you don't deal much with the topic of extremely private cheats, that's also the reason why you heard about ekknod etc. because if ekknod etc. were extremely private like you say, you wouldn't have heard about it.
besides, you won't get extremely private hacks just like that, why should you? it's generally assumed that you can't afford it, because the clientele of extremely private cheats is very limited, it's not even specifically about money but also about the reputation of who you are.
ekknod is not extremely private, register, pay and you get it, all fully automatic, you don't have to do any identity checks, nothing, just send in your HWID and you're done.
behind an extremely private cheat there are maybe 1-2 people at most who do the code and the distribution, then something like that costs around 1000€ per month and they have 10-15 customers, that's it. everything else is mass-produced.
the word private is only used because it sounds more cool.
Hello