Digital technology is increasingly blending with our physical environment. Thanks to smartphones, smart home systems, wearables, and connected vehicles, we now enjoy location-based features that once belonged only in science fiction. One of the most practical and fascinating technologies in this space is geofencing—a method that allows smart devices to trigger actions based on your…

QR codes (Quick Response codes) are everywhere these days: on restaurant tables, parcels, posters, tickets, and business cards. They’re incredibly convenient — just scan with your phone and you’re instantly taken to a website, a digital menu, or even connected to Wi-Fi. But how safe are QR codes, really? Do you actually know what data…