Property we stayed at was located just off the main promenade in Dubrovnik. Building and rooms were well kept and had a lot of character. First night stayed on first floor, which made for a noisy wake up call the next morning as restaurants below began their clean up at 5:30am. Management quickly moved us to a higher floor room, for our next night, which made for a quieter night stay.
We were given a digital code to our room which was easy to remember, since it was based off our room #. At first we thought, how convenient! Then realized, the code is probably never changed. Then also realized, the number logic probably applies to other rooms in the building (So, just replace a 3 with a 4, for example to access room 4). Confronted management about it, and they did not see any concern in not changing the hotel and room access codes, once a guest checks out. Basically, anyone who has stayed at the hotel, or who is a current guest, has the ability to access your room, if they are smart enough to realize the access codes don't change and that the same number logic is used for other rooms. So, it was a safety concerns, but luckily nothing happened.