1. Your Apps Are Watching You CS 595 - Elliott Peay

2. Overview Article Focus What Happened Findings What is Going On

3. 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.

4. What Happened About the Investigation Investigation Methodology

5. About the Investigation 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/

6. 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

7. 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

8. Facebook (Android) Data Recipients: Facebook Data Sent: Username/Password Source: http://blogs.wsj.com/wtk- mobile/2010/12/17/facebook-iphone/

9. PaperToss (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/

10. Calorie Counter (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/

11. What is Going On? Many different groups are using this information Ad Networks o Targeted Advertising Software Developers o Analytics o User Information

12. Ad Networks Multiple apps who work with a particular ad network allow for complex user profiles to be developed. ApplicationData Sent Realty / Mapping AppDevice ID, GPS Information Social Networking AppDevice ID, Gender, Age, Ethnicity Shopping AppDevice ID, Product Types

13. "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

14. Privacy Differences vs Computers "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 Image: http://blogs.wsj.com/wtk-mobile/ Source: http://online.wsj.com/article/SB10001424052748704694004576020083703574602.html

15. Developers Want Our Information, Too Analytics o Track user navigation through website Demographics o See who is using the app

18. Source: http://blogs.wsj.com/wtk-mobile/ (Image compressed horizontally for presentation)

19. Conclusion 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/