The sign on the post at the pizza joint in Detroit had just one word on it, "Dog," and a QR code. My first reaction − and unfortunately this is how it goes when you write a little too much about fraud ...

The sign on the post at the pizza joint in Detroit had just one word on it, "Dog," and a QR code. My first reaction — and unfortunately this is how it goes when you write a little too much about fraud ...

QR codes that were once seen as a convenient shortcut for checking menus or paying bills have increasingly been turned into weapons. Fake delivery texts, counterfeit payment links and malicious codes ...