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Protecting Children’s Personal Information: Using Contextual Integrity Theory to Examine Information Boundary on Mobile Devices Ying Chen*, Sencun Zhu*,

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Presentation on theme: "Protecting Children’s Personal Information: Using Contextual Integrity Theory to Examine Information Boundary on Mobile Devices Ying Chen*, Sencun Zhu*,"— Presentation transcript:

1 Protecting Children’s Personal Information: Using Contextual Integrity Theory to Examine Information Boundary on Mobile Devices Ying Chen*, Sencun Zhu*, Yilu Zhou +, Heng Xu* *The Pennsylvania State University + Fordham University

2 Children’s Privacy Risk with Mobile Use 25% of toddlers used their parents’ smartphones in 2011 48% of American children aged between 6 and 12 want iPad for Christmas gift Nearly 10% children get first mobile phone by the age 5

3 Children’s Privacy Risk with Mobile Use Children’s personal information (CPI) can be easily leaked via mobile use Sharing CIP on mobile devices to third-parties exposes children to risks such as cyber-solicitation Only 13% of mobile apps have privacy policies regarding collection and distribution of children’s personal information

4 Parents Unaware of Privacy Risks

5 Let strangers know these information is dangerous for children Where are you at this moment? How can I bond with you?

6 Contextual Integrity Theory as a Theoretical Framework We use the contextual integrity theory to examine information boundaries on mobile platforms We aim at developing quantitative measures of privacy risks on children’s mobile apps We propose context-based mobile privacy controls, and perform a case study to examine the information boundaries among the top 49 coloring apps

7 Contextual Integrity Theory as a Theoretical Framework Nissenbaum’s theory of contextual integrity argues that privacy concerns are not absolute but largely depend on the context. In general, contextual integrity conceptualizes privacy as the flow of information of a certain type (attributes) about a subject from a sender to a recipient, governed by a particular transmission principle in a given context.

8 Four Elements

9 Case Study Exploiting contextual integrity theory to Establish a context-based access control mechanism on mobile platforms Quantitatively measure privacy risks of children’s mobile apps

10 Context-based Access Control on Mobile Platforms The safety level of disclosing CPI on mobile devices highly depends on the context When children use mobile devices in risky times, unprotected locations, or without guardians’ companion, mobile platforms should automatically limit the disclosure of CPI Rules can be designed on mobile platforms to limit disclosure of certain types of CPI under certain context

11 Quantitative Privacy Risk Measures on Mobile Apps Measure the privacy risk levels of mobile apps with three dimensions in contextual integrity: 1.actors, 2.attributes, and 3.transmission principles We conducted an experiment to show how the proposed method can effectively measure apps’ privacy risks and help parents choose safe apps for their children.

12 Case study

13 Thanks! Protecting Children’s Personal Information: Using Contextual Integrity Theory to Examine Information Boundary on Mobile Devices Ying Chen, Sencun Zhu, Yilu Zhou, Heng Xu


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