This book is a review of published research in computer security, user
authentication, intrusion detection, game security and behavioral
biometrics. We analyze previous studies and point out trends and propose
taxonomies which make understanding and improvement on previous work
easier. In particular the majority of contributions in this book is to
the field of behavioral biometrics. Research in biometric technologies
offers one of the most promising approaches to providing user friendly
and reliable control methodology for access to computer systems,
networks and workplaces. Majority of such research is aimed at studying
well established physical biometrics such as fingerprint or iris
recognition. Behavioral biometrics are usually only briefly mentioned
and only those which are in large part based on muscle control such as
keystrokes, gait or signature are well investigated. This book was
written to fill the coverage gap with respect to this promising
technology.