This course focuses on understanding the history, the vulnerability, and the need to protect our Critical Infrastructure and Key Resources (CIKR). We will start by briefly surveying the policies that define the issues surrounding CIKR and the strategies that have been identified to protect them. Most importantly, we will take a comprehensive approach to evaluating the technical vulnerabilities of the sixteen identified sectors, and we will discuss the tactics that are necessary to mitigate the risks associated with each sector. These vulnerabilities will be discussed from the perspective of technical journals/articles that detail recent and relevant network-level CIKR exploits. We will cover well-known vulnerable systems such the Internet, SCADA, and lesser-known systems such as E911 and industrial robots. Students will be challenged with hacker-type home works inspired by current SANS NewsBites and the instructor's research, and will work on a team-based semester-long project.