Privacy in e-commerce: examining user scenarios and privacy preferences
Proceedings of the 1st ACM conference on Electronic commerce
Web Privacy with P3p
Automated analysis of P3P-enabled Web sites
ICEC '03 Proceedings of the 5th international conference on Electronic commerce
Omnivore: risk management through bidirectional transparency
NSPW '04 Proceedings of the 2004 workshop on New security paradigms
Usable security and privacy: a case study of developing privacy management tools
SOUPS '05 Proceedings of the 2005 symposium on Usable privacy and security
Determining user privacy preferences by asking the right questions: an automated approach
Proceedings of the 2005 ACM workshop on Privacy in the electronic society
User interfaces for privacy agents
ACM Transactions on Computer-Human Interaction (TOCHI)
Ontology and application to improve dynamic bindings in mobile distributed systems
WICON '06 Proceedings of the 2nd annual international workshop on Wireless internet
Simulating and implementing geospatially-based binding mechanisms for mobile peering
Proceedings of the 1st international conference on Ambient media and systems
Electronic Commerce Research and Applications
An analysis of privacy signals on the World Wide Web: Past, present and future
Information Sciences: an International Journal
Enforcing P3P policies using a digital rights management system
PET'07 Proceedings of the 7th international conference on Privacy enhancing technologies
Influence of the Privacy Bird® user agent on user trust of different web sites
Computers in Industry
Privacy-enhanced user-centric identity management
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Does privacy information influence users' online purchasing behavior?
HI'11 Proceedings of the 2011 international conference on Human interface and the management of information - Volume Part I
Searching for privacy: design and implementation of a p3p-enabled search engine
PET'04 Proceedings of the 4th international conference on Privacy Enhancing Technologies
ITWP'03 Proceedings of the 2003 international conference on Intelligent Techniques for Web Personalization
A comparative study of privacy mechanisms and a novel privacy mechanism [short paper]
ICICS'09 Proceedings of the 11th international conference on Information and Communications Security
Personal and Ubiquitous Computing
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The Platform for Privacy Preferences (P3P), developed by the World Wide Web Consortium (W3C), provides a standard computer-readable format for privacy policies and a protocol that enables web browsers to read and process privacy policies automatically. P3P enables machine-readable privacy policies that can be retrieved automatically by web browsers and other user agent tools that can display symbols, prompt users, or take other appropriate actions. We developed the AT&T Privacy Bird as a P3P user agent that can compare P3P policies against a user's privacy preferences. Since P3P was adopted as a W3C recommendation in April 2002, little work has been done to study how it is being used and, especially, its impact on users. Many questions have been raised about whether and how Internet users will make use of P3P, and how to build P3P user agents that will prove most useful to end users. In this paper we first provide a brief introduction to P3P and the AT&T Privacy Bird. Then we discuss a survey of AT&T Privacy Bird users that we conducted in August 2002. We found that a large proportion of AT&T Privacy Bird users began reading privacy policies more often and being more proactive about protecting their privacy as a result of using this software. Unfortunately, the usefulness of P3P user agents is severely limited by the number of web sites that have implemented P3P. Our survey results also suggest that if it becomes easier to compare privacy policy across e-commerce web sites, a significant group of consumers would likely use this information in their purchase decisions.