This book constitutes the refereed proceedings of the 9th International Conference on Information Systems Security, ICISS 2013, held in Kolkata, India, in December 2013. The 20 revised full papers and 6 short papers presented together with 3 invited papers were carefully reviewed and selected from 82 submissions. The papers address theoretical and practical problems in information and systems security and related areas.

This book constitutes the refereed proceedings of the Second International Conference on Information Systems Security, ICISS 2006, held in Kolkata, India in December 2006. The 20 revised full papers and five short papers presented together with four invited papers and three ongoing project summaries were carefully reviewed and selected from 79 submissions. The papers discuss in depth the current state of the research and practice in information systems security.