Technology and Practice of Passwords: 9th International Conference, PASSWORDS 2015, Cambridge, UK, December 7-9, 2015

This book constitutes the thoroughly refereed post-conference proceedings of the 9th International Conference on Passwords, PASSWORDS 2015, held in Cambridge, UK, in December 2015. The 6 revised full papers presented together with 3 revised short papers were carefully reviewed and selected from 32 initial submissions. The papers are organized in topical sections on human factors, attacks, and cryptography.