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About Lorrie Cranor

Lorrie Cranor (http://www.oreillynet.com/pub/au/826) is a principal technical staff member in the Secure Systems Research Department at AT&T Labs-Research Shannon Laboratory in Florham Park, New Jersey. She is chair of the Platform for Privacy Preferences Project (P3P) Specification Working Group at the World Wide Web Consortium. Her research has focused on a variety of areas where technology and policy issues interact, including online privacy, electronic voting, and spam.
Help! IE6 Is Blocking My Cookies

I regularly hear from Web site developers who have added a new cookie-enabled feature to their site only to discover that visitors using the Microsoft Internet Explorer 6 (IE6) Web browser are unable to use it. After a little investigation, they discover the problem has something to do with cookies and a new W3C Recommendation called P3P. “What is P3P?” they ask. “What does it have to do with my cookies? And how can I stop IE6 from blocking them?” The answers to all of these questions and more can be found in my new book, Web Privacy with P3P. In this article, I will give you a quick introduction to P3P and an overview of what you need to do to prevent IE6 from blocking your cookies.