A Serious Critique of P3P : Privacy on the Web

This critique covers most of the facets of the P3P platform, examining both the assumptions and implementation. Areas targeted for critical need are: "more specificity in declaring the purpose behind taking information, a means to establish a negotiated contract that goes beyond W3's APPEL (A P3P Preference Exchange Language), a means in the law for policing the contracts obtained, a means for transitivity and universality of the protection on information, and an IETF (Internet Engineering Task Force) definition that doesn't require the web (specifically, the HTTP protocol)."