This book is a comprehensive presentation of embedded Java security. It is compared with the security model of the Java 2 Standard Edition in order to view the impact of limited resources on security. No other book specifically addresses the topic of embedded Java security. Furthermore, the book provides hints and suggestions as ways for hardening security, and offers researchers and practitioners alike a broader and deeper understanding of the issues involved in embedded Java security, and as a larger view - mobile devices security. The author is a well-known authority and expert in mobile computing and embedded devices.