Proceedings of the International Conference on IT Convergence and Security 2011 approaches the subject matter with problems in technical convergence and convergences of security technology by looking at new issues that arise from techniques converging. The general scope is convergence security and the latest information technology with the following most important features and benefits : (1) introduction of the most recent information technology and its related ideas, (2) applications and problems related to technology convergence, and its case studies, and (3) introduction of converging existing security techniques through convergence security.