Honeypots are highly sophisticated technologies used to observe and learn about hackers. Practical and commercial interest in these new forms of hacker defense is now hitting the mainstream. There are many successful commercial honeypots, including ManTrap and Specter. Security expert Marcus Ranum notes in his Foreword, "Right now there are about a half-dozen commercial honeypot products on the market. Within a year, I predict there will be dozens. Within two years, there will be a hundred." Spitzner also covers legal issues, one of the most controversial subjects concerning honeypots, receiving extensive guidance from the Department of Justice in writing the legal material. The book, Know Your Enemy was written by a team of authors, and focuses on a special type of honeypot via a research project called The Honeynet Project. This new book is written by the acknowledged honeypot expert and discusses many different types of honeypot technologies. They are perfect companion books. Get a strong foundation with "Honeypots" and explore more details of honeypot deployment with Know Your Enemy.