Fake QR codes help cybercriminals leverage stolen information to drain bank accounts. Other QR code scams trigger repeated charges to credit cards.

There has been a recent surge in "quishing" attacks, which are a form of phishing that uses QR codes instead of traditional methods like emails, text messages, and phone calls.

How did we end up with a mix of government and private QR code check-in services, and a different system in each state and territory?

In 2012, hotels rolled out QR codes to delight guests with freebies, sell them something - or, in one case, shock them.

The NSW Government is updating its Service NSW app to increase public use of QR code check-ins with the pandemic raging in greater Sydney.

QR – or "quick response" – codes are a bit like a shortened URL when it comes to fraud. Like that sign at the pizza place, you're not able to see where clicking on the square will take you.