Home security marketing often pitches a single device as the solution, but security professionals generally recommend a layered approach where multiple measures reinforce each other.
Exterior deterrents — visible cameras, adequate lighting, and well-maintained landscaping that eliminates hiding spots near entry points — reduce the likelihood of an attempt happening at all, which is more valuable than any response measure after an attempt has already begun.
Entry point hardening — quality deadbolts, reinforced door frames, and secured windows — addresses the most common actual entry methods, which research consistently shows are far more often a door or ground-floor window than a more dramatic forced entry point.
Detection and response — alarms, monitoring, and notification systems — matter as a final layer, but are most effective when the previous two layers have already reduced the likelihood of needing them.
No single layer is sufficient alone; the combination is what meaningfully reduces overall risk.