Since .PDF files are not as dangerous as .EXE or .LNK files, they rarely raise any suspicion with the victims. Opening the file up does nothing, but it also shows nothing except the QR code, which ...

A seemingly legitimate email from an office scanner with a PDF file attached. (Image credit: Sophos) When scanned, the QR code directed the employee to a Microsoft 365 sign-in box, where the ...

The technology is there for the QR code to provide not just a menu, but an entire ordering system. Some restaurants just upload a PDF of their menu to a website you can access through a QR code ...