How do automated super market security systems work? What differentiates a product purchased from one stolen (assuming no anti-theft devices on the products)?

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How do automated super market security systems work? What differentiates a product purchased from one stolen (assuming no anti-theft devices on the products)?

In: Technology

Well, aside of on-product chips, they don’t. The large plastic ‘scanners’ at the end of a checkout zone actually don’t do anything, but rather make you fell like they are. This is called ‘Security Theatre’ and just scares the thief away before they think about stealing.