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The complexity of Android's message-passing system has led to numerous vulnerabilities in third-party applications. Many of these vulnerabilities are a result of developers confusing inter-application and intra-application communication mechanisms. Consequently, we propose modifications to the Android platform to detect and protect inter-application messages that should have been intra-application messages. Our approach automatically reduces attack surfaces in legacy applications. We describedoi:10.1145/2381934.2381948 dblp:conf/ccs/KantolaCHW12 fatcat:bgtbslj2crhc3k4ipldjq5jkfm