The ten contributions selected in this special issue represent a collection of extended papers presented at the seventh International Conference on Computational Intelligence in Security for Information Systems (CISIS 2014).
CISIS Conferences aim to offer a meeting opportunity for academic- and industry-related researchers belonging to the various, vast communities of Computational Intelligence, Information Security, and Data Mining. The need for intelligent, flexible behaviour by large, complex systems, especially in mission-critical domains, is intended to be the catalyst and the aggregation stimulus for the overall event.