My ham gear was stolen from my locked apartment on two different occasions, with no sign of forced entry, obviously an inside job by someone with a pass key. The apartment managemant was indifferent when I reported the thefts. A neighbor who was also a ham also lost equipment in the same complex.
Thankfully I am now a homeowner. If the theives want my equipment they will have to break down the door, no more pass keys. I don't even allow repair or service persons to enter the house if no one will be home.
When you check into a hotel, a sign at the front desk reminds you to check your valuables in the safe because the hotel denies responsibility for the security of your room. I think that when you sign an apartment lease you should be given a similar notice, because they also have no interest or responsibility for the actions of their dishonest employees. If you live in rental housing, be very careful about leaving valuables where the maintainance personel can see them when you are not there, and report any missing items to the police (no they won't recover them for you, but it establishes that a pattern of crime exists in that complex).
Dan Schultz N8FGV