In the age of the Internet, hackers rob banks and other financial instructions without having to fire a weapon or knowing how to drive a car. Security professionals need to understand how hackers are getting into their critical systems and what artifacts they leave behind. This book details the steps hackers take to get in, maintain access, and hide their presence from the computer security team. It details the artifacts that can be left behind during an intrusion, including Windows registry artifacts, scheduled tasks, logs, and evidence within volatile data, and provides a blueprint to properly secure systems.