I've been advocating for a statistical honeypot model for a while now. This is a much more robust anti cheat measure than even streaming/LAN gaming provides. If someone figures out a way to obtain access to information they shouldn't have on a regular basis, they will be eventually be found with these techniques. It doesn't matter the exact mechanism of cheating. This even catches the "undetectable" screen scraping mouse robot AI wizard stuff. Any amount of signal integrated over enough time can provide damning evidence.
> With that goal in mind, we released a patch as soon as we understood the method these cheats were using. This patch created a honeypot: a section of data inside the game client that would never be read during normal gameplay, but that could be read by these exploits. Each of the accounts banned today read from this "secret" area in the client, giving us extremely high confidence that every ban was well-deserved.