Technique used to protect business assets and merchandise by means of security labels, tags and detection equipment. EAS ensures protection of buildings, access points, exits and enclosed areas, and sets off an alarm whenever items equipped with an active tag go through the electronic detector.

RFID based technology used by retailers to deter theft. When an article is purchased (or borrowed from a library), the tag is removed or turned off. If an article passes through a read zone with a live tag, an alarm sounds.

Simple electronic tags that can be turned on or off. When an item is purchased (or borrowed from a library), the tag is turned off. When someone passes a gate area holding an item with a tag that hasn't been turned off, an alarm sounds. EAS tags are embedded in the packaging of most pharmaceuticals.

An electronic loss-prevention system that signals if a product has not been de-activated at a cash register. Used on high-ticket items, such as alcohol and cigarettes.