VACNet

Well, Vac Net is a neural network that analyzes overwatch games. It's self-learning, and it looks like pretty well, because most of the cheaters got banned.
But time will show some pattern that people getting banned and why, and cheaters will adapt to a new system.
So if you're a legit player then this is the best time to play, because people don't know how vacnet works exactly so they will be getting banned more likely or they will wait until someone comes up with a solution.