Which retail innovation was first developed by the U.S. military in the 1970s to secure PX (Post Exchange) stores that later became standard in civilian retail cybersecurity?

During the Cold War era, the U.S. military faced unique challenges in maintaining morale and providing essential supplies to personnel stationed in remote or sensitive locations worldwide. This led to one of the most innovative retail solutions in military history, combining security protocols with consumer convenience in a way that transformed military retail operations and later influenced civilian retail security practices. Test your knowledge about this fascinating intersection of military necessity and retail innovation!

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Electronic Article Surveillance (EAS) tags
Barcode scanning systems
Self-checkout kiosks
RFID inventory tracking