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Your Apps Are Watching You. CS 595 - Elliott Peay. Overview. Article Focus What Happened Findings What is Going On. Article Focus. Wall Street Journal investigates what information is sent over the network by the apps we use. Also contains an analysis of the information. What Happened.
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Your Apps Are Watching You CS 595 - Elliott Peay
Overview • Article Focus • What Happened • Findings • What is Going On
Article Focus Wall Street Journal investigates what information is sent over the network by the apps we use. Also contains an analysis of the information.
What Happened • About the Investigation • Investigation Methodology
101 Apps were tested 50 popular on iPhone 50 popular on Android WSJ iPhone app Android shown at right iPhone apps will not be covered. Source: http://blogs.wsj.com/wtk-mobile/ About the Investigation
Investigation Methodology Device was restricted to increase accuracy of data gathered. • Single-Process Mode • No 3G Access • Man in the middle attack used to obtain data streams • "Mallory" software used to decrypt data
Findings • Generally, free apps sent more data than paid apps • Generally, iPhone apps sent more data than Android apps • Google was the biggest data recipient
Data Recipients: Facebook Data Sent: Username/Password Source: http://blogs.wsj.com/wtk-mobile/2010/12/17/facebook-iphone/ Facebook (Android)
Data Recipients: AdWhirl Flurry Geocade AdMob (Google) AdSense (Google) Microsoft Data Sent: Phone ID Location Information Source: http://blogs.wsj.com/wtk-mobile/2010/12/17/paper-toss/ PaperToss (Android)
Data Recipients: FatSecret (Owner) DoubleClick (Google) Analytics (Google) Data Sent: Username/Password Phone ID Location Information Phone Number Source: http://blogs.wsj.com/wtk-mobile/2010/12/17/calorie-counter/ Calorie Counter (Android)
What is Going On? Many different groups are using this information • Ad Networks • Targeted Advertising • Software Developers • Analytics • User Information
Application Data Sent Realty / Mapping App Device ID, GPS Information Social Networking App Device ID, Gender, Age, Ethnicity Shopping App Device ID, Product Types Ad Networks Multiple apps who work with a particular ad network allow for complex user profiles to be developed.
"Why is my GPS icon blinking?" Information which is generally harder to obtain is of more value to an ad company. "In its software-kit instructions, Millennial Media lists 11 types of information about people that developers may transmit to "help Millennial provide more relevant ads." They include age, gender, income, ethnicity, sexual orientation and political views. In a re-test with a more complete profile, MySpace also sent a user's income, ethnicity and parental status." Source: http://online.wsj.com/article/SB10001424052748704694004576020083703574602.html
"The great thing about mobile is you can't clear a UDID like you can a cookie,[...] That's how we track everything." Meghan O'Holleran Traffic Marketplace Privacy Differences vs Computers Image: http://blogs.wsj.com/wtk-mobile/ Source: http://online.wsj.com/article/SB10001424052748704694004576020083703574602.html
Developers Want Our Information, Too • Analytics • Track user navigation through website • Demographics • See who is using the app
Source: http://blogs.wsj.com/wtk-mobile/ (Image compressed horizontally for presentation)
Finding the over-sharing apps are not possible at first glance. Trust is a critical step in finding a good app Source: http://blogs.wsj.com/wtk-mobile/ Conclusion