QR code is the shorthand of Quick Response code, a two-dimensional barcode that is readable by smartphones. Created in 1994 for the Japanese automotive industry, QR codes exist for 26 years but its massive adoption happens recently when the pandemic took off worldwide. At present, QR code is now used in many contexts. Although it is widely used in marketing and information sharing, it becomes even more popular when it is used to make mobile payments especially since the Covid-19 pandemic started. Thus, QR code is rapidly arriving at high levels of acceptance worldwide.

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