Particularly when it comes to medication or medical devices sold online, end-users often wonder whether these are real or fake. The SmartID counterfeit-proof barcode system means anyone can use a smartphone to check a product is genuine, provided the manufacturer uses SmartID. It can be authenticated without connecting to a database. SmartID has been developed by a consortium of Fraunhofer institutes. The result of a three-year project, they will exhibit a demonstration version of their SmartID at the joint Fraunhofer booth (Hall 3, Booth E74) at MEDICA 2023 in Düsseldorf from November 13 to 16, 2023.