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Eyeing your exposure: Quantifying and controlling information sharing for improved privacy

Schlegel, R and Kapadia, A and Lee, AJ (2011) Eyeing your exposure: Quantifying and controlling information sharing for improved privacy. In: UNSPECIFIED UNSPECIFIED. ISBN 9781450309110

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A large body of research has focused on disclosure policies for controlling information release in social sharing (e.g., location-based) applications. However, less work has considered how exposed these policies actually leave users; i.e., to what extent are disclosures in compliance with these policies actually being made? For instance, consider a disclosure policy granting Alice's coworkers access to her location during work hours. Alice might feel that this policy appropriately controls her exposure, but may feel differently if she learned that her boss was accessing her location every 5 minutes. In addition to specifying who has access to personal information, users need a way to quantify, interpret, and control the extent to which this data is shared. We propose and evaluate an intuitive mechanism for summarizing and controlling a user's exposure on smartphone-based platforms. Our approach uses the visual metaphor of eyes appearing and growing in size on the home screen; the rate at which these eyes grow depends on the number of accesses granted for a user's location, and the type of person (e.g., family vs. friend) making these accesses. This approach gives users an accurate and ambient sense of their exposure and helps them take actions to limit their exposure, all without explicitly identifying the social contacts making requests. Through two systematic user studies (N = 43,41) we show that our interface is indeed effective at summarizing complex exposure information and provides comparable information to a more cumbersome interface presenting more detailed information. © 2011 ACM.


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Item Type: Book Section
Status: Published
CreatorsEmailPitt UsernameORCID
Schlegel, R
Kapadia, A
Lee, AJadamlee@pitt.eduADAMLEE
Date: 1 December 2011
Date Type: Publication
Journal or Publication Title: SOUPS 2011 - Proceedings of the 7th Symposium on Usable Privacy and Security
Event Type: Conference
DOI or Unique Handle: 10.1145/2078827.2078846
Schools and Programs: Dietrich School of Arts and Sciences > Computer Science
Refereed: Yes
ISBN: 9781450309110
Date Deposited: 27 Nov 2012 18:40
Last Modified: 02 Feb 2019 16:56


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