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Another new tracking method designed to encourage retail buying is the use of visual devices that will scan the potential customer's face to determine whether they are pleased or not. If they don't look particularly pleased, then the store will attempt to interest the customer in something else.
All hope is not lost, there are some technologies that put a blanket over the devices that want to track you. For example, this digital wallet has a device that will hide it from RFID tracking devices.
Our smart technologies don't always work as advertised. Many people have no problem giving up privacy for many benefits available. But others don't see it that way.