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Recently, it is widespread for malware to collect sensitive information owned by third-party applications as well as to escalate its privilege to the system level (the highest level) on the Android platform. An attack of obtaining root-level privilege in an Android environment can form a serious threat to users from the viewpoint of breaking down the whole security system. This paper proposes a new scheme that effectively prevents privilege escalation attacks and protects users' personaldoi:10.22667/jisis.2012.11.31.029 dblp:journals/jisis/ParkLKCC12 fatcat:7ssx3cdnpbcwjb2wdnz73ledlu