TY - JOUR AU - Stach, Christoph AU - Gritti, Clémentine AU - Bräcker, Julia AU - Behringer, Michael AU - Mitschang, Bernhard T1 - Protecting Sensitive Data in the Information Age: State of the Art and Future Prospects JO - Future Internet Y1 - 2022/october VL - 14 IS - 11 SP - 302:1 EP - 302:43 M3 - https://doi.org/10.3390/fi14110302 KW - smart service; privacy techniques; location-based services; health services; voice-controlled digital assistants; image analysis; food analysis; recommender systems; DNA sequence classification U1 - 1999-5903 N2 - The present information age is characterized by an ever-increasing digitalization. Smart devices quantify our entire lives. These collected data provide the foundation for data-driven services called smart services. They are able to adapt to a given context and thus tailor their functionalities to the user’s needs. It is therefore not surprising that their main resource, namely data, is nowadays a valuable commodity that can also be traded. However, this trend does not only have positive sides, as the gathered data reveal a lot of information about various data subjects. To prevent uncontrolled insights into private or confidential matters, data protection laws restrict the processing of sensitive data. One key factor in this regard is user-friendly privacy mechanisms. In this paper, we therefore assess current state-of-the-art privacy mechanisms. To this end, we initially identify forms of data processing applied by smart services. We then discuss privacy mechanisms suited for these use cases. Our findings reveal that current state-of-the-art privacy mechanisms provide good protection in principle, but there is no compelling one-size-fits-all privacy approach. This leads to further questions regarding the practicality of these mechanisms, which we present in the form of seven thought-provoking propositions. ER -