Several varieties of doors are unsafe because they are easy to smash and open. Fragile, hollow-core doors should never be used for the exterior of a home or apartment. Consider strengthening the frames around your exterior doors and the hinges that attach the door to the frame. Otherwise, a quick shove could open your door by breaking the hinges or the frame. Remember that a side or back door, being less visible, may be subjected to a stronger attack than your front door.
Good security is important for all exterior doors on every home and apartment.
A 190 degree wide-angle peephole installed in solid doors will help you identify people who come to the door. You also should have adequate lighting at all exterior entrances. Sliding glass doors offer the burglar several means of entry. These include prying the doors open with a screwdriver or prybar, lifting the door or window out of its track, or breaking the glass. To secure the sliding glass door, each of these means of entry must be dealt with individually.