I know that hotel room safes have a master key and are not considered very secure.
Let's suppose I'm not worried about theft, but about a person with the master key opening the safe, messing with its contents and then closing it back to the previous combination so I wouldn't even know that anyone opened it.
Is this a possibility?
For the sake of the question, let's ignore techniques that are very complicated or take a long time to do (e.g. dismantling the hardware to read the memory chip, or just brute-forcing the combination), and let's suppose I wiped the keypad so the combination won't be easy to see.
I suppose the question comes down to one thing. Can the master key be used to read the combination?