Why are you comparing theft to game hacking out of nowhere?

You made the comparison: “Much like every security system”

Source?

It’s out there, my dude. It’s a constant complaint in literally every competitive online game. If people are complaining about it, then it’s not working well enough. This isn’t an esoteric thought either. You ask anyone if cheating is a big issue in online gaming and anyone with knowledge about it will tell you it’s a constant problem that’s getting worse.

What do you mean by system in “full access to the system”?

If you own the hardware and have admin/root access to the OS. Then it’s yours and you have “full access” to everything. And I do mean everything. You can modify the OS. You can read the values of protected parts of memory. And so on.

If you don’t understand what I mean by “full access to the system” in the context of anti-cheat running on your own hardware, then there’s nothing I can say in a short comment to get you up to speed.

Someone still has to discover the exploit.

The cheat and anti-cheat battle is a constant cat and mouse game. The advantage is always with the cheaters because they outnumber the developers 100:1 at the least. Plus they have the will and determination to find ways around anti-cheats. In fact, building security against exploits is by far way harder than finding exploits.

The reality is that client-side anti-cheat is a losing battle.