What are RFID tags and why was the RFID sniffer inventedSolu

What are RFID tags and why was the RFID \"sniffer\" invented?

Solution

RFID is a short name for Radio Frequency Identification. It involves using radio waves or electromagnetic waves to transfer data and use in identifying or tracking objects. Most commonly found in the ID cards used in offices, RFID tags on clothes and other accessories in shopping centres and superstores.

RFID sniffers were mainly invented to prevent shop lifting. If somebody picks up a piece of cloth and tries to move out with it without paying for it. The RFID sniffers installed at the exit beeps and the unpaid article is detected if the RFID tag has not been removed (which are pretty difficult to remove by hand require special accessory to remove). Thus it can help prevent shoplifting.