So I have this character that is supposed to be "really good" at hacking. But I don't really have a reference for what is realistic. And really, there is so little mainstream information on top of the line hackers (presumably the really good ones stay hidden) so the character trait almost borders on a superpower where you can just make up how good he is. I'm sure there has to be a line drawn somewhere between obviously unrealistic and possibly realistic. For example... I was thinking of having the guy have a phone "app" where he can scan a fingerprint (this is a crime story) with his phone and compare it to the national police fingerprint database that he has gained access to through hacking.