Polish official creates Android app that spits out fake boarding pass-spoofing QR code to get into swanky airport lounges. App generates a valid QR code based on a fake name, flight number, destination, and class. The trick works because automated readers dont cross-check the information provided by the fake QR code with actual ticket information from the airline. Its a glaring security flaw that allows someone to make duty-free purchases without the added cost of an actual plane ticket.”]
Source: https://gizmodo.com/hacker-builds-a-qr-code-generator-that-lets-him-into-fa-1784884083