It’s true that security signs can deter intrusions in Columbia
Many studies say security signs are effective when attempting to deter an intrusion. The reasoning is that the thief will discover the display and instantly make the decision that your residence isn't worth the hassle. Ultimately, why worry about surveillance systems and motion detectors when they can pivot to a more vulnerable house in another neighborhood?
With that being said, the same research indicates that signage isn’t the strongest burglary deterrent. A smartly positioned sign mostly dissuades novices, but seasoned thieves will want to discover the level of security that is actually shielding your home prior to moving on. Other devices, like security cameras, are more effective at thwarting prospective invaders.