Recently smart mobile device is one of commodities in our lives and the number of global smartphone users are expected to be over 2 billions by 2016. According to International Data Corporation, Android is being used globally on more than 80% of smartphones in 2014. Despite of the number of Android devices, the security risk tends to be underestimated by device users and causes critical problems especially on personal information leakage and costing money unconsciously. Malware are also often activated unsuspectedly. Therefore, a means for easy recognition of the problems and the smartphone usage is necessary. In this paper we present a personal visual analytics system for Android security risk lifelog using app permissions to recognize the risk. Our system stores the security-related personal information on the smartphone device and utilizes it to analyze the security risk lifelog. For the risk analysis, we define security risk scores based on the app and permission statistics. Then, several linked visualizations are designed to present the risk lifelog. We have collected the security lifelog data from eight Android smartphone users and analyzed their security matters. Our personal VA system enables Android smartphone users to observe, mitigate the security risk, and eventually understand how Android security risk affects their lives. Moreover, we present a user study to evaluate the personal VA system with user feedback.
Mobile Security Visual Analytics System using Android Permission and usage Patterns
Sangbong Yoo, Hong Ryeol Ryu, Jang Y, Taekyoung Kwon
Korea Computer Congress 2015