If you regularly use QR codes to pay online, read on.
QR code scam: What is it?
How do scammers use the QR code to dupe people?
Don’t scan the QR code to receive money
How to avoid QR code scam
c) You do not need to download any app to pay via a QR code. Most smartphones have a built-in scanner through a camera application. So if a QR code is directing you toward downloading an app, avoid it.
d) Whenever you are paying via QR code to an unknown entity, make sure you verify it and then pay. You can call the company before making a payment. You can also check online whether the company exists or not.