The authors would like to thank Jones & Bartlett Learning for the opportunity to write this book and be a part of the Information Systems Security & Assurance Series project. Thanks also go to Mike Chapple, our technical reviewer, and Kim Lindros, our project manager. Mike ensured that every sentence in this book was as clear and technically accurate as it could possibly be. Kim managed the project on our behalf, reviewing and ferrying all the pieces that flowed between us, Mike Chapple, and Jones & Bartlett Learning.

Our heartfelt gratitude to our extended family and friends, without whose support we could not have written this book.

Bill and Tricia Ballad

To all my parents for providing the foundation that made this possible. Thank you.

To the Ursos for letting me spend hours in the yellow house and for making coffee. I am truly grateful.

To Mr. Weiss, I hope my words reflect all the guidance and wisdom you provided. I have learned more from you than you will ever know.

To Tarik and my family and friends who listened to me and still missed me. I don't know what I would do without you.

To Marty Weiss, Carole Jelen, Mike Chapple, Kim Lindros, and all the editors, for everything you do. Your assistance and advice are truly appreciated.

To RSA, EMC, and all my colleagues: You guys make me love security every day.

Erin K. Banks