Attacks on computer systems that are very personal - just cracking technique most site administrators care about is one that is being used against them at this time, and it's really difficult to meet these requirements in a book. And that's probably enough, unless you have some enemies who really enthusiastic. Anonymous author explains most security risks, defense strategies, and security tools in highly readable prose that is mixed with a number of moderate listings (of command-line exchanges and software) and a large number of Internet addresses (where detailed information and software can be found). Readers will put this book down with a strong foundation in Internet security concepts, ready to harden their systems against attack and cope effectively with the news about new security risks.