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- W2914838064 abstract "Recent studies observe that app foreground is the most striking component that influences the access control decisions in mobile platform, as users tend to deny permission requests lacking visible evidence. However, none of the existing permission models provides a systematic approach that can automatically answer the question: Is the resource access indicated by app foreground? In this work, we present the design, implementation, and evaluation of COSMOS, a context-aware mediation system that bridges the semantic gap between foreground interaction and background access, in order to protect system integrity and user privacy. Specifically, COSMOS learns from a large set of apps with similar functionalities and user interfaces to construct generic models that detect the outliers at runtime. It can be further customized to satisfy specific user privacy preference by continuously evolving with user decisions. Experiments show that COSMOS achieves both high precision and high recall in detecting malicious requests. We also demonstrate the effectiveness of COSMOS in capturing specific user preferences using the decisions collected from 24 users and illustrate that COSMOS can be easily deployed on smartphones as a real-time guard with a very low performance overhead." @default.
- W2914838064 created "2019-02-21" @default.
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- W2914838064 date "2017-09-19" @default.
- W2914838064 modified "2023-09-23" @default.
- W2914838064 title "Keeping Context In Mind: Automating Mobile App Access Control with User Interface Inspection" @default.
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- W2914838064 doi "https://doi.org/10.48550/arxiv.1709.06654" @default.
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