There is no such thing as a’ free hack in overwatch '.
uhhhhhh, all you have to do is type it into search. Since august 7th there were 3 different versions of hacks that went public and are or were, free. I am in no way advocating using these or using them myself because there would be 0 fun in overwatch, or any game for that matter, if I were using a program to aim for me.
I wont post the videos but just type it into google and 3 different bots pop up and different youtube videos on them as well.