This volume contains the proceedings of the IFIPTM 2007, the Joint iTrust and PST Conferences on Privacy, Trust Management and Security, held in Moncton, New Brunswick, Canada from July 29 to August 2, 2007.

The annual iTrust international conference looks at trust from multidisciplinary perspectives: economic, legal, psychology, philosophy, sociology as well as information technology. The annual PST conference has quickly established itself as a leader in multidisciplinary research on a wide range of topics related to Privacy, Security and Trust, looked at from research and practice, through academe, business, and government. The two conferences have come together this year to take a more thorough look at all elements of trust management.

The highlights of IFIPTM 2007 included invited talks by industrial and academic experts including Larry Korba from NRC-IIT, Brian O'Higgins of 3rd Brigade, Jim Robbins from EWA, Jonathan Cave from RAND, Roger London, and Bruce Cowper from Microsoft Canada.

This volume contains the proceedings of IFIPTM 2010, the 4th IFIP WG 11.11 International Conference on Trust Management, held in Morioka, Iwate, Japan during June 16-18, 2010. IFIPTM 2010 provided a truly global platform for the reporting of research, development, policy, and practice in the interdependent arrears of privacy, se- rity, and trust. Building on the traditions inherited from the highly succe- ful iTrust conference series, the IFIPTM 2007 conference in Moncton, New Brunswick, Canada, the IFIPTM 2008 conference in Trondheim, Norway, and the IFIPTM 2009 conference at Purdue University in Indiana, USA, IFIPTM 2010 focused on trust, privacy and security from multidisciplinary persp- tives. The conference is an arena for discussion on relevant problems from both research and practice in the areas of academia, business, and government. IFIPTM 2010 was an open IFIP conference. The program of the conference featured both theoretical research papers and reports of real-world case studies. IFIPTM 2010 received 61 submissions from 25 di?erent countries: Japan (10), UK (6), USA (6), Canada (5), Germany (5), China (3), Denmark (2), India (2), Italy (2), Luxembourg (2), The Netherlands (2), Switzerland (2), Taiwan (2), Austria, Estonia, Finland, France, Ireland, Israel, Korea, Malaysia, Norway, Singapore, Spain, Turkey. The Program Committee selected 18 full papers for presentation and inclusion in the proceedings. In addition, the program and the proceedings include two invited papers by academic experts in the ?elds of trust management, privacy and security, namely, Toshio Yamagishi and Pamela Briggs

This volume contains the proceedings of the IFIPTM 2007, the Joint iTrust and PST Conferences on Privacy, Trust Management and Security, held in Moncton, New Brunswick, Canada from July 29 to August 2, 2007.

The annual iTrust international conference looks at trust from multidisciplinary perspectives: economic, legal, psychology, philosophy, sociology as well as information technology. The annual PST conference has quickly established itself as a leader in multidisciplinary research on a wide range of topics related to Privacy, Security and Trust, looked at from research and practice, through academe, business, and government. The two conferences have come together this year to take a more thorough look at all elements of trust management.

The highlights of IFIPTM 2007 included invited talks by industrial and academic experts including Larry Korba from NRC-IIT, Brian O'Higgins of 3rd Brigade, Jim Robbins from EWA, Jonathan Cave from RAND, Roger London, and Bruce Cowper from Microsoft Canada.