I live in Burnaby, where we have a community mailbox. It's never been robbed, as far as I know. It's encased inside a secondary metal container so we need two keys to get to our mail. Meanwhile, home mailboxes (near the front door) are almost never locked.

If you want to do identity theft, garbage cans are where to look. They're almost never locked.

The metal cage is there because probably the boxes were robbed constantly ;) The pics I've seen of these new boxes don't have a cage but I imagine will when tons of theft happens.