QR codes and barcodes have become everyday tools—they're on product packaging, restaurant menus, payment systems, and promotional materials. While they're convenient, they also create security risks that most people don't think about. This category covers how these codes work, what information they can carry, and the real threats they pose, from malicious links to data theft.
The articles here answer practical questions: How do you know if a QR code is safe to scan? What happens when you point your phone at one? How can scammers use codes to trick you? And what steps can you take to protect yourself without avoiding them entirely? Understanding these tools helps you use them confidently while staying alert to the risks.