Leakage Detection and Risk Assessment on Privacy for Android Applications: LRPdroid

How to identify and manage information leakage of user privacy is a very crucial and sensitive topic for handheld mobile device manufacturers, telecommunication companies, and mobile device users. As the success of a financial fraud usually requires possessing a victim's private information, new types of personal identity theft and private information acquirement attack are developed and deployed along with various Apps in order to steal personal private information from mobile device users. With more than 50% of smartphone market share, Android-based mobile phone vendors and Internet service providers have to face the new challenge on user privacy management. In this paper, we present a user privacy analysis framework for an Android platform called LRPdroid. The goals of LRPdroid are to achieve information leakage detection, user privacy disclosure evaluation, and privacy risk assessment for Apps installed on Android-based mobile devices. With a formally defined user privacy model, LRPdroid can effectively support mobile users to manage their own privacy risks on targeted Apps. In addition, new privacy analysis viewpoints such as user perception and leakage awareness are introduced in LRPdroid. Two general App usage scenarios are evaluated with our system prototype to show the feasibility and practicability of the LRPdroid framework on user privacy management.