A joint study by Intel Labs, Penn State, and Duke University has identified that publicly available cell-phone applications from application markets are releasing consumers' private information to online advertisers. Researchers at the participating institutions have developed a realtime monitoring service called TaintDroid that precisely analyses how private information is obtained and released by applications "downloaded" to consumer phones. In a study of 30 popular applications, TaintDroid revealed that 15 send users' geographic location to remote advertisement servers. The study also found that seven of the 30 applications send a unique phone (hardware) identifier, and, in some cases, the phone number and SIM card serial number to developers.
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