People is the object because they are the recipient of the action.
They is the subject because they are the ones taking action.
Yes, it should be. It is a crime to steal from someone anywhere else, why not on the internet, for stealing someone's information. Private or not. Also, since it is so easy to do it, it can cause a psychological problem that will cause people to do it really often, and not prosecuting them will make them think they can get away with it. hope this helps
It is the voice is used to evaluate the writers tone