[Tangsen]

Yes, but what I mentioned, which part is not correct? I am not an IT trained guy but I know how to use IT in work, biz.

As far as I know, QR code can't do anything to your phone cos it is just carrying data so that you can access something quicker by scanning it. It is not an app that can harm your phone or computer.

How can QR codes be exploited?

Hackers may alter the original QR Code and link malicious software that automatically gets installed on a device as soon as someone opens the link after scanning the QR Code. This software program can further access a device's location, contact lists, or even data, which hackers exploit