Home security systems work on the simple concept of securing entry points into a home with sensors that communicate with a control panel or command center installed in a convenient location somewhere in the home. As shown in the security plan below, the sensors are typically placed in doors that lead to and from a house as well as easily accessible windows, particularly any that open, especially those at ground level. These security components, when armed, protect a given space by creating an invisible zone that cannot be breached without sounding an alarm. Security planning is designing, implementing, monitoring, reviewing, and continually improving practices for security risk management.