A security system may deter a potential intruder. More importantly, your security system makes a part of your whole security.
You want to make your home/business hard and difficult to break into. Having quality locks, doors, security doors, windows, window locks, blinds drawn, security lighting coupled with a professional alarm system and a quality CCTV system. Makes your home or business say “I’m difficult and a hard to break into, go find an easier target.”
The difference between having a professional security system installed and not installed in your home or business is the amount of time the intruders have to go through your home or business.