Generally speaking, the state of hotel security is usually less than what I would think it would be from a first-principles thinking perspective. I've been able to get plenty of room keys, charge things to rooms, adjust reservations, etc. all using basic information that could be picked up by eavesdropping at the lobby bar. Guest spaces generally aren't all that private and a lot of measures can be easily bypassed (have seen so many propped-open fire doors thanks to smokers). But that being said, from a purely statistical risk perspective, I'd rather stay with the status quo than feel like I'm staying in a prison.