No, that's misunderstanding how wi-fi works. Wi-fi is a signal broadcast from a wireless hotspot, which only have a limited range. To be able to use that hotspot, you have to be within that range,...
Well what I always do is encrypt verticaly.For example:
Unencrypted sentence: I hate school
Encrypted sentence:
I hstn skhlok
s lafe ncyohl = I hate school
Thats probably not what you meant and...