Knock on wood, we've had good luck the last few years. As a neighborhood, we used to have a problem with mail thefts and stolen packages. We live a block from the entrance to a watershed district park with creeks and pathways . People would park and walk all over the neighborhood and there was a lot of thefts from our curbside mailboxes. We got a locking box as did several neighbors. A few years back flooding caused some major damage in the park, forcing a big remodel/rerouting project, and making our street a dead end. Our entrance was closed, which mostly solved the problem. Our delivery guys are pretty good about always ringing the doorbell.
Sad someone had to lose something precious to someone else's greed.