Really? Well, only someone new to this "world" would ask this shit.
Hacking is NOT a damn video game.....
Really? Traffic lights and shit? You can't be that 'fo realz'. Facial recognition doxing people on a whim. Maybe that would happen back in the early 90s when it was just BBs and shit.
Yeah, there are 'mobile' devices that can pwn stuff. But pwn in the scope of reality. Wifi networks, MitM attacks, hell, brute force/rainbow/wordlist {automated}SQL injections or XSS and shit with it, but I doubt you could make an ARM bases processor do that eh?
Scope is more than code, learn le place.