This book constitutes the refereed proceedings of the 10th International Conference on Information and Communications Security, ICICS 2008, held in Birmingham, UK, in October 2008. The 27 revised full papers presented together with one invited paper were carefully reviewed and selected from 125 submissions. The papers are organized in topical sections on authentication, side channel analysis, cryptanalysis, access control, software security, system security, applied cryptography, and security protocols.