This has been a thing since day 1 of Overwatch at the very least. Most aimbots being used didn't touch the executable or memory at all, they were called 'color

This has been a thing since day 1 of Overwatch at the very least. Most aimbots being used didn't touch the executable or memory at all, they were called 'color bots' because all they had to do was match pixel color values. They were basic enough a concept you could build them in AutoIT macro software along with ramp up and down features so you weren't just instantly spamming headshots, but instead incrememently your aim would get better. They became so sophisticated that you could be sat behind someone physically using one and not be sure they were cheating or not.