Is there a way to block certain console variables from being executed?

I’m trying to prevent users from messing with some select console variables in the ini files. Right now they can change a bunch of tonemapper related settings in the Engine.ini (like r.Tonemapper.Gamma or r.Tonemapper.Quality) and I want to disallow that. This is to prevent cheating in an online game.

Is there a way to block certain console variables from being executed in shipping builds? Or somehow make the engine skip certain console variables in the ini files? I know some UE games do this but I haven’t been able to figure out how.