A large number of end-user computers are mobile devices and the lion’s share of those are smartphones. APTs are increasingly targeting the mobile market. Mobile malware increased more than 1,000-percent in 2012 alone. A malicious QR (Quick Response) code contains a link to a website embedded with malware. The best way to avoid and protect the enterprise is simply to not use malicious QR codes, advises Dave Chronister, Lead Hacker, Parameter Security, which enterprises contract to perform penetration (pen) tests.”]
Source: https://www.csoonline.com/article/2133890/the-dangers-of-qr-codes-for-security.html