Lessons include:
Outward opening doors are harder to break through than inward opening doors.

Wood stops, door frames and rough framing often fail by splitting.

Wood faced, hollow core doors are weak.

Locks with strong mechanisms and long bolts, or rim locks that cannot be pulled away from the strike plate or frame.

Corrections:
Switch/modify doors so they will open out.

Fasten hinges and locks into thicker wood, plywood (which is very resistant to splitting, or aluminum plates which can be machined like hardwood). If the space between door frame and rough opening allows for adding 1/4" aluminum plates (3-1/2" and as tall as the rough opening)the retro-fit is pretty easy. If not you need to plane down the rough opening to allow room for the plates. Plates should be screwed to rough framing with 3" deck screws in a zig-zag pattern at about 4" OC.

Once installed the aluminum plates are drilled to accept the screws from the hinges, stops, deadbolt/s, and door frame. All of which are installed with 3" screws.

Stops on both sides of the door frame can be greatly reinforced if the wood ones are replaced with a rectangular aluminum extrusion that is fastened at tight intervals with long screws that pass through the stop, door frame, aluminum reinforcement plate and on into the rough framing.

Replace thin or hollow core doors with solid wood or steel doors. Hollow core doors can be faced with sheet steel. The location where locks/s are can be reinforced with hardwood, plywood, sheet steel or aluminum plates. Ideally they are through-bolted with carriage bolts that pull against thick and wide reinforcement plates so they will not pull through.

If you want to do a grade-A job the rough opening can be greatly reinforced by installing 1/2" or better plywood both inside and out, replacing the drywall or plaster, for 4' or more around the door opening. The plywood should be nailed in a standard 4-6-12 pattern (be sure to stagger the 4" OC runs) but glued with a API-01 rated construction adhesive and screwed 12" OC is better still.

It is a lot of work but you end up with a door that is going to take lot of time to get through. Also one that is highly resistant to wind. Just make sure you can still get out.