How To Make My New Mail Slot Burglar Proof?

Install MaiL Slot in Door, Prevent Identity Theft front door with mail slot wires and cords through vulnerable mail slots to unlock front doors A mail slot can also allow an intruder to look front door mail slot Mail slots all seem to be abot 3 wide Is there some sort larger opening door or drop box type thing that could be installed on the front door

front door mailbox slot A: A door mail slot is a small, rectangular opening in the front door through which a mail carrier can deliver mail Its benefits include usability and security