The aim of IWSEC2009 is to contribute to research and development of various security topics: theory and applications of traditional and up-to-date security issues. Topics include but are not limited to:

• Network and Distributed Systems Security
• Security Issues in Ubiquitous/Pervasive Computing
• Authorization and Access Control
• Software and System Security
• Usable Security
• Privacy Enhancing Technology
• Digital Identity Management
• Digital Forensics
• Biometrics
• Cryptography
• Information Hiding
• Quantum Security
• Secure and Efficient Implementation
• Other Scientific Approaches for Security