Under CopyrightDahlmanns, MarkusMarkusDahlmannsMatzutt, RomanRomanMatzuttDax, ChrisChrisDaxWehrle, KlausKlausWehrle2024-03-202024-03-202024https://publica.fraunhofer.de/handle/publica/464322https://doi.org/10.24406/publica-281710.1007/978-3-031-57540-2_210.24406/publica-2817Security configurations remain challenging for trained administrators. Nowadays, due to the advent of the Internet of Things (IoT), untrained users operate numerous and heterogeneous Internet-facing services in manifold use case-specific scenarios. In this work, we close the growing gap between the complexity of IoT security configuration and the expertise of the affected users. To this end, we propose ColPSA, a platform for collective and privacy-aware security advice that allows users to optimize their configuration by exchanging information about what security can be realized given their IoT deployment and scenario.enconference paper