Your Windows
First-level entry windows are the second-most common entry point for burglars, after the front door. That’s because it’s relatively easy to jimmy a window open, according to A Secure Life, a company that evaluates and rates home security systems.
And even people who are diligent about locking their doors will often leave a window cracked open, especially in warm weather. Fortunately, this is an easy fix using a window jam that will only allow the pane to be pushed open a few inches.