is not necessary for the security system 48 to work but is one embodiment what is necessary is that the security system is able to recognize whether the given mobile device 22 is associated with a given person or unknown through an iff identification friend or foe this can be done through a client application 46 programmed to embed the iff data in the information that the user expects the network transceiver 24 to collect through the described u201c sniffing u201d process as noted the network transceivers 24 collect application names the client application 46 is programmed to rename itself to a code which will be recognized as an iff signal alternatively the security system 48 may include a whitelist of mac addresses wherein no client application 46 is necessary and the iff signal is instead merely the mac address here data collected in the application server 26 is analyzed and directions are sent by the application server 26 to the security system 48 in order to cause security actions to occur e g inform law enforcement automatically lock doors turn on lights deliver messages turn on cameras activate traps etc fig6 is an illustrative implementation of a mobile device tracking system integrated with a security system 48.