QR codes, once a convenient tool for accessing information, are now being exploited by criminals to scam unsuspecting users.

For example, barcodes can only be scanned in a line, whereas a scanner can read QR codes in all directions (two-dimensions). As a result, QR codes can hold more data than barcodes. When it comes ...

Masahiro Hara and Takayuki Nagaya invented the two-dimensional matrix barcode, which can be read effortlessly ... you can pay with WeChat Pay or AliPay using a QR code. The app is started, a ...