Proceedings of the Third International Symposium on Human Aspects of Information Security & Assurance (HAISA 2009)The Human Aspects of Information Security and Assurance (HAISA) symposium specifically addresses information security issues that relate to people. It concerns the methods that inform and guide users' understanding of security, and the technologies that can benefit and support them in achieving protection. This book represents the proceedings from the 2009 event, which was held in Athens, Greece. A total of 11 reviewed and 2 invited papers are