The present invention relates to a community security system capable of monitoring multiple, generally adjacent, consecutive private security areas to confirm human activity and engage sensory alerts. The community security system includes at least two private security areas having the capability of being networked together to enable information sharing. Each private security area is monitored by a private security system and contains one or more detection devices for monitoring and detecting activity occurring within the boundaries of the private security area. Information detected by detection devices within the private security areas can then communicate with other detection devices within the private security area or with the community security system to confirm activity, track activity across adjacent boundaries, engage sensory alerts and notify community members or authorities, as needed.