couldn't a cheater intercept their own client with a man-in-the-middle-attack, pull out the data like player positions and stuff, and simulate the game on anoth

couldn't a cheater intercept their own client with a man-in-the-middle-attack, pull out the data like player positions and stuff, and simulate the game on another PC? you could even do aimbot by finding the client's input packets and replacing them. i suppose if the game's connection was encrypted or something you would still need to access the client PC's memory