Stop me if you’ve seen this before: a black and white pixelated square in lieu of a physical menu at a restaurant. QR codes are seemingly ubiquitous in everyday life. Whether you see one on a coupon at the grocery store, a flyer on a bulletin board, or the wall at a museum exhibit, each code contains embedded data. Unfortunately, QR codes in physical spaces are sometimes replaced or tampered with to trick you into giving away your data to unwanted parties — a seemingly harmless set of pixels could…
