To be fair about #2, I have rarely seen vulns in QR code scanners that were actually related to the scanning of QR codes. The only issues I heard about were thi

To be fair about #2, I have rarely seen vulns in QR code scanners that were actually related to the scanning of QR codes. The only issues I heard about were things like auto-opening a URL or logic issues when handling the scanned data. Of course this doesn't immediately lead to perfect and provable security, but there are bigger issues with the concept than this.