TY - GEN A1 - Windl, Maximiliane A1 - Thalhammer, Philipp A1 - Müller, David A1 - Schmidt, Albrecht A1 - Feger, Sebastian T1 - PrivacyHub: A Functional Tangible and Digital Ecosystem for Interoperable Smart Home Privacy Awareness and Control T2 - In CHI Conference on Human Factors in Computing Systems (CHI ’25), April 26–May 01, 2025, Yokohama, Japan. N2 - Hubs are at the core of most smart homes. Modern cross-ecosystem protocols and standards enable smart home hubs to achieve interoperability across devices, offering the unique opportunity to integrate universally available smart home privacy awareness and control features. To date, such privacy features mainly focus on individual products or prototypical research artifacts. We developed a cross-ecosystem hub featuring a tangible dashboard and a digital web application to deepen our understanding of how smart home users interact with functional privacy features. The ecosystem allows users to control the connectivity states of their devices and raises awareness by visualizing device positions, states, and data flows. We deployed the ecosystem in six households for one week and found that it increased participants’ perceived control, awareness, and understanding of smart home privacy. We further found distinct differences between tangible and digital mechanisms. Our findings highlight the value of cross-ecosystem hubs for effective privacy management. KW - human-computer interaction, smart home privacy, tangible privacy, smart home dashboard, privacy awareness, privacy control Y1 - 2025 U6 - https://doi.org/10.1145/3706598.3713517 ER - TY - CHAP A1 - Windl, Maximiliane A1 - Feger, Sebastian T1 - Designing Interactive Privacy Labels for Advanced Smart Home Device Configuration Options T2 - In Designing Interactive Systems Conference (DIS ’24), July 01–05, 2024, IT University of Copenhagen, Denmark. ACM, New York, NY, USA N2 - Labels inform smart home users about the privacy of devices before purchase and during use. Yet, current privacy labels fail to fully reflect the impact of advanced device configuration options like sensor state control. Based on the successful implementation of related privacy and security labels, we designed extended static and interactive labels that reflect sensor states and device connectivity. We first did expert interviews (N = 10) that informed the final label design. Second, we ran an online survey (N = 160) to assess the interpretation and usability of the novel interactive privacy label. Lastly, we conducted a second survey (N = 120) to investigate how well our interactive labels educate users about sensor configuration. We found that most participants successfully used the interactive label and retrieved sensor information more efficiently and correctly. We discuss our findings in the context of a potential shift in label use toward control and use-case-based interaction. KW - Privacy Labels KW - Smart Home KW - Interactive Labels Y1 - 2024 U6 - https://doi.org/10.1145/3643834.3661527 ER -