Our professionally designed home security stickers announce that your home is protected. 8 Pack - Outside Mount Screen Print Decals. Burglars by their nature are looking for an ''easy score'' and will choose a home that looks vulnerable over one that appears to have a security system. The most important thing you can do to protect your home is to provide a visible deterrent. We recommend alarm decals on all first floor windows. You should also consider placing a yard sign near each entry door. Burglars are looking for an easy target and will normally pass up a home or business which advertises that an alarm system is present.