I live on the first floor of an apartment complex (so cannot change the doors altogether) where we have double-sided sliding glass doors (IE both panels of the door have the ability to open). I’m not too concerned with securing the glass, but I am concerned with securing the ability for a thief to circumvent the very simple sliding glass door lock.

I did some googling and at first settled on putting a bar on the track. This works fine for the door with the indoor track. However, since there are two door handles, there is another door that needs securing. If I place a bar in track of the second door (the track that is outside), the thief can simply remove this and continue breaking in.

We’ve installed alarms and cameras for each door, but I’d like to make sure I’m not missing anything. Is there anything I can do (without replacing the whole door) to secure the second door, which has its track outside?