Quick Response Code, widely known as “QR” code, is a two-dimensional digital image that can be easily scanned by any mobile device’s camera. Once scanned, it will quickly direct to the data embedded in the code. Today, the QR code gained major commercial popularity due to mobile technology. The penetration rate of mobile devices has increased from 15.6% (2001) to 74.9% (2010) globally (Narang, ...