Abstract: A system and method to deter the theft of paper currency comprising a currency pack assembly containing coded electronics and an ignitable chemical pack. There is a coded teller sentry unit located near the cash drawer in which the currency pack assembly is stored. The currency pack assembly contains a coded transmitting/receiving apparatus that signals the coded teller sentry unit when the currency pack assembly is removed from the cash drawer. The coded teller sentry unit is connectable to a silent alarm and may trigger the silent alarm upon removal of the currency pack from the cash drawer. The coded teller sentry unit is also connectable to surveillance equipment such as cameras, and activates such equipment automatically upon removal of the currency pack assembly from the cash drawer. There is also a coded door control unit located near the egress to the building which detects when the currency pack assembly has left the building.