Opening menus, paying parking fees, gaining entry to events, calling up information or logging into a WLAN, all this is possible with the help of QR codes. QR codes are practical, but can also be misused for criminal purposes: So-called “quishing” is now a widespread method used by fraudsters to obtain sensitive information such as usernames, passwords and credit card details. We explain how quishing works and how you can protect yourself in our blog post.