@Dog,Greetings,playing a Sombra I think is not a something what game forbide 
if we talking about hackers 
, but yea,I don’t think ppl can hack into Overwatch even if they,they can for one-two games since system not recognize them,Blizzard has very good anticheat system I belive,I play since 2016 Overwatch never been seen hacker,except Sombra . All the best in the future!