I. Creating a policy-aware web / Daniel Weitzner, Jim Hendler, Tim Berners-Lee, Dan Connolly -- II. Web services security / Carlos Garcia, Eduardo Paton, Mario Belthius -- III. Policies for web security services / Konstantina Stoupa, Athena Vakali -- IV. Data confidentiality on the semantic web / Csilla Farkas -- V. Secure semantic grids / Bhavani Thuraisingham -- VI. Web content filtering / Elisa Bertino, Elena Ferrari, Andrea Perego -- VII. Sanitization and anonymization of document repositories / Yücel Saygin, Dilek Hakkini-Tur, Gökhan Tur -- VIII. Integrating access policies into the development process of hypermedia web systems / Paloma Diaz, Daniel Sanz, Susana Montero -- IX. Policy-based management of web and information systems security / Gregorio Perez, Félix Clemente, Antonio Skarmeta -- X. Chinese wall security policy model / Tsau Lin -- XI. A multimedia-based threat management and information security framework / James Joshi, Mei-Ling Shyu, Walid Aref, Arif Ghafoor -- XII. Framework for secure information management in critical systems / Rajgopal Kannan, S. Iyengar, A. Durressi -- XIII. Trustworthy data sharing in collaborative pervasive computing environments / Stephen Yau -- XIV. Privacy-preserving data mining on the web / Stanley Oliveira, Osmar Zaiane.