As the Covid-19 pandemic made people hesitant to touch most surfaces in early 2020, QR codes started popping up everywhere. They’ve become even more ubiquitous over the past year and a half, showing up on everything from restaurant menus to mobile check-ins to supermarket displays. And now, according to a report from the City of Austin, fraudulent QR codes have been found on more than two dozen parking pay stations across the city.