Could I ask you to prove one player has actually cheated?
I agree it's lame when someone has a 2nd account with intentions to not play but help that players main account. I call this exploiting the game, but not cheating.
Cheats: Someone rolling all sixes every roll, GOD mode so you can't hurt them, Win the game automatically regardless of who actually won, types a few cheat codes and he is a GrandMaster but hasn't played a single game, controls your player and theirs, controls the game so no one can move or play except them, gains 100 troops start of game and every turn, etc.
NEVER SEEN ONE ACTUAL CHEAT YET IN RISK!
But user exploiting multiple accounts happens a lot, and no way to stop it.
None of this affects me as I don't cheat and only play one account. Just get tired of seeing so many posts about people cheating like expecting a referee in every game. Who would manage all these red flags your submitting. I'd rather have that developer making six figures coding game features then monitoring for cheaters.
Disclaimer, my post is meant nicely and only for polite discussion, thanks.