Pervasive privacy: A practical context-aware system to preserve privacy on android smartphones

Advent of instant messaging systems has increased the concerns about privacy violation. Although, smartphones contain a lot of personal information, their operating systems have not provided a complete compliance with privacy preserving principles. As a result, providing a smart guard for private information on smartphones is required. The proposed system should be able to detect which information could be shared with other users and warn in the case of unintended sensitive information leakages, as well. In this paper, we propose a context-aware real-time system to preserve privacy on android smartphones with mentioned properties using information flow tracking techniques. The proposed system detects privacy violation in Android phones based on users relations in a social network created by the system itself.