Before this, Chen Mo had suspected that Origin played the game by connecting to the computer through a data cable. Wasn't that a plug-in?
The principle of external modification was to correct some of the operating signals of humans and do things that humans could not do. Origin could be seen as a more comprehensive and powerful external program.
If a portion of Origin's functions were taken out and made into auxiliary functions, such as automatic team battle, automatic recall, automatic minion pull, and so on, and then given to normal players, wouldn't that be the most high-end plug-in?
Moreover, Origin's disguising skills were very good. After limiting its APM, its performance could fool most human players. Chen Mo had to use the background data to find its flaws.
Chen Mo also noticed that Origin did not trigger any anti-virus software or security alarm when he connected to the computer and played Warcraft.
If this was a hack, it shouldn't have been discovered.