Make sure doors and windows are locked.
Make sure exterior doors are solid core wood or metal.
Deadbolt locks should be used on all exterior doors.
Check door moldings for tight fit.
Doors should be hinged so no pins can be removed from outside.
Replace locks with the double-cylinder type (which also needs keys on the inside), particularly doors with glass panels.
Keep garage and tool shed locked.
Remove all obstructions in your yard that could conceal a burglar breaking into your house.
Consider changing your locks when moving into a new house or apartment.
Install a peephole-viewer in your door.
Use exterior lighting around your home.
If you live alone don’t advertise it. Use only your initials and last name on your mailbox and telephone listing.
Always check identification before opening your door.
If a stranger asks to use your telephone in an emergency, offer to make the call yourself.
Get to know your neighbors -- someone you can turn to if you're worried.
If you live in an apartment, avoid being in the laundry room or garage by yourself, especially at night.
If you come home and believe a break in has occurred, do not go inside. Go to the nearest telephone and call the police