New Overwatch patch nullifies aimbots
Aimbots have been a huge issue for Overwatch. Particularly in Korea, Blizzard banned over 23,000 Korean users at one time for using aimbots.
However, the latest Overwatch patch seems to rectify aimbot issues. According to Redditor “a16425”, the new update slightly offsets player outlines to nullify the purpose of aimbots.
“Basically starting from this patch, the outlines on enemies slightly change in color (unnoticeable to human eyes) so that the image recognition engine on aimbots would be either completely useless or have high failure rate (if they try to target the range, rather than a specific RGB value). They are already known to function incorrectly on maps like Gibraltar with red backgrounds so this should deal a critical blow to these hacks.”
Outside of that, you can read the full patch notes here.
Oh, and the source.