There were breakins in our old neighborhood a few years ago. Had nothing to do with easy/hard targets or perceived wealth or poorness, they would just go down the street one house after another during the day when people are at work.
I bought a new steel door for the front and took the older steel door from the front and used it to replace the wooden door in the back. Made sure there were 2 2x4's on each side screwed together with real framing screws every 6" top to bottom. Steel reinforcing L brackets at the ends bolting to the header and footer. Then I mounted the new door frame and took the striker off and drilled with a hole saw behind it and drove a steel pipe though. Opened the drywall and took that all the way into the next stud. This way the deadbolt went into a pipe rather than just a strike plate, then a good strike plate with large construction screws.