Centralized check-in apps reignite debate around digital contact tracing in Switzerland
During the pandemic, the public as well as the private sector have worked on digital tools for contact tracing. Private companies developed a variety of check-in apps for venues such as restaurants, bars, and clubs. In contrast to the SwissCovid app, those check-in apps collected data through a centralized architecture. This form of data collection in combination with insufficient checks on the private companies' use of the data raises questions regarding citizens' privacy and data security.