@bonkmaykr
>we would reach a point where anticheat software will have to rely on observing player behavior in-game, and we will have to accept that closet cheaters go undetected if we hope not to ban innocent players.
A Norwegian figured how to fingerprint Counter-Strike players using their keyboard and mouse inputs taken from public demo files, and it's much more accurate and effective than whatever Valve does for anti-cheat. CS's only value is as a test bed for ideas like this, but it does fulfill that purpose well.
https://old.reddit.com/r/GlobalOffensive/comments/1wxh3h6/i_found_a_way_to_make_bans_follow_players_instead/
My only multiplayer games these days are fighting games, which haven't historically seen much appeal for cheaters due to the low population, but Street Fighter 6 is so megapopular that it has attracted several breeds of cheaters. They're all so obvious that it's wrapped around to being funny, and the biggest tell about them is the inhuman inputs.