This volume constitutes the refereed proceedings of two workshops: the International
Cross-Domain Conference and Workshop on Availability Reliability and Security CD-ARES 2014
and the 4th International Workshop on Security and Cognitive Informatics for Homeland Defense
SeCIHD 2014 co-located with the International Conference on Availability Reliability and
Security ARES 2014 held in Fribourg Switzerland in September 2014. The 23 revised full
papers presented were carefully reviewed and selected from numerous submissions. The papers
deal with knowledge management software security mobile and social computing enterprise
information systems homeland security and information processing.
