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Styx: Design and Evaluation of a New Privacy Risk Communication Method for Smartphones

Abstract : Modern smartphone platforms are highly privacy-affecting but not effective in properly communicating their privacy impacts to its users. Particularly, actual data-access behavior of apps is not considered in current privacy risk communication approaches. We argue that factors such as frequency of access to sensitive information is significantly affecting the privacy-invasiveness of applications. We introduce Styx, a novel privacy risk communication system that provides the user with more meaningful privacy information based on the actual behavior of apps. In a proof-of-concept study we evaluate the effectiveness of Styx. Our results show that more meaningful privacy warnings can increase user trust into smartphone platforms and also reduce privacy concerns.
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Gökhan Bal, Kai Rannenberg, Jason Hong. Styx: Design and Evaluation of a New Privacy Risk Communication Method for Smartphones. 29th IFIP International Information Security Conference (SEC), Jun 2014, Marrakech, Morocco. pp.113-126, ⟨10.1007/978-3-642-55415-5_10⟩. ⟨hal-01370359⟩

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