
The innocuous black-and-white Quick Response (QR) codes pervasive across retailers, airports, bars, hotels (and more) are the threat surfaces no one talks about. But attackers see them as the perfect Trojan Horse for hijacking phones and stealing digital identities.
https://venturebeat.com/security/how-a-simple-qr-code-can-take-control-of-your-phone-and-digital-life/