A few years ago, my in-laws lived in an apartment in Rome, Italy. This was like a 6th floor apartment in a fairly big, nice building in a very safe part of town. The door lock on the entry door was magnificent. It was like a safe. I want to say that it had a total of 3 deadbolts coming out the side of the door; 1 towards the top and 1 towards the bottom. You had to keep turning the key multiple rotations to get all of the deadbolts to engage. And the whole thing (door + jamb) was made out of some kind of steel. Most impressive.
I did a search for "Italy apartment door lock" and found this:
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Kinda similar, except this was nicer (everything was enclosed inside the door, not visible) and I don't know if it had all 4 deadbolts out the top and bottom like this one.
My relatives in Italy have something similar. And they live somewhere I consider a nice part of town. My relatives who live in the countryside (farming folk) take a no nonsense approach to security. Every window has iron bars and can be secured from inside. The front door has a big wooden beam slid across it at night.
I like the Italian locks they look pretty elegant. You pretty much have to tear down the whole frame to get in.
When I was in the Middle East, upper end residences were mostly outfitted with steel doors with bolts that inserted into metal cylinders embedded in concrete flooring. I think you'd need a bomb to break down those doors. And of course all windows were barred.
That said, why a more expensive lock, if a great lock is just going to result in thieves breaking in through a window?
A break in method that I'm surprised you hear very little about - I'd think you could go right through a wall fairly effortlessly, given a cordless circular saw & a good blade, or a reciprocating saw with a good blade. Interior is merely drywall, exterior is usually just OSB plus whatever covering is on the house - e.g., vinyl siding. I suppose the other methods are simply good enough.
A break in method that I'm surprised you hear very little about - I'd think you could go right through a wall fairly effortlessly, given a cordless circular saw & a good blade, or a reciprocating saw with a good blade. Interior is merely drywall, exterior is usually just OSB plus whatever covering is on the house - e.g., vinyl siding. I suppose the other methods are simply good enough.