You see QR codes just about everywhere these days. The square barcodes show up everywhere: real estate listings, TV ads and social media posts touting what look like great deals on must-have items.

Facebook posts about the dangers of consumers receiving a package as part of a brushing scam warn that the lone act of scanning a malicious QR code — a code found inside the unsolicited parcel — can ...

What is a QR code? A QR code (short for Quick Response code) is a two-dimensional barcode that can be read by your smartphone camera. QR codes provide quick access to product information, promotions ...