P3P, Platform for Privacy Preferences, is a standard created by the W3C to allow users more control over their personal information. It allows an automated way for a user’s privacy preferences and a Web site’s privacy policy to be compared for agreement so that users can gain more control over the use of their personal information without having to make redundant decisions at every Web site.

P3P essentially defines two standards:

  • A standard format for specifying a privacy policy

  • A discovery method for locating a privacy policy

Privacy policies are defined in XML documents called policy statements. A good example of a policy statement is one of the W3C’s policy statements:

 <?xml version=”1.0”?> <POLICIES xmlns=”http://www.w3.org/2002/01/P3Pv1”> ...

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