Best part is its impossible to hide the data from the program because of how the game is required to work, so there's really no getting rid of it.
Only way they could really catch you using it is by RAM scanning, and that's only if you're running it on the same computer you run the game on(you don't have to).
Only one company I know of has done that and I think there was a privacy lawsuit going. Blizzard. Warden.