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First created in 1994 by the Japanese car company Toyota, Quick Response (QR) Codes are commonly used to represent data in a pictorial form and contain a lot more data than barcodes. Like many other technologies, QR Codes come with some danger if misrepresented. Unlike a barcode, the data that a QR Code represents is not provided in a human-readable form so the individual doesn’t know what the QR Code is showing. This can be a problem if the QR Code is pointing to a URL that is taking someone to an incorrect website.  
Hacked URLs are a common point of discussion when examining the safety of QR Codes. It’s important to remember that QR Codes do not have to represent a URL. They can be an encrypted lookup code that points an authorized reader to a location from where they can pick up the information that is being shared. A lookup code can have a limited lifetime, generally thirty seconds, and can be invalidated after being read so they cannot be used again. The technolo ....

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