According to a study conducted by Duke University, Penn State and Intel Labs, of 30 applications for the Android smartphone studied, two-thirds exhibited "suspicious handling of sensitive data." InfoWorld reports that 15 of the applications sent users' geographic location to remote advertisement servers, even if users had specified that the app only access that data to unlock location-based features. According to the study, the loophole exists because apps have only "coarse-grain controls" for accessing personal information, but few regulations over how the data can be used.
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