Entering someone's house uninvited is extremely clearly not an appropriate thing to do.
But accessing an unauthorized system? That term is so ill-defined, that it quite literally means you can be prosecuted for modifying a URL and being given back a web page you weren't supposed to see.
But accessing an unauthorized system? That term is so ill-defined, that it quite literally means you can be prosecuted for modifying a URL and being given back a web page you weren't supposed to see.