Computer Science for IGCSE & O level - Hardware (Section 10 - No. 13)
Which of the following is a disadvantage of QR codes compared to traditional barcodes? (Select all that apply)
They can be easily scanned from a distance.
They are easier to create.
They can transmit malicious codes.
They cannot be read by the camera on a smartphone.
Giải thích
QR codes can transmit malicious codes.