Link to pictures of the CDC 2005 event at Iowa State University. The CDC is the CyberDefense Competition held at ISU where teams of students attempt to defend their networks against a team of attackers (usually area professionals) over the course of an entire weekend. The event is reminiscent of Defcon’s Capture the Flag, but with a much more instructive mentality. I wish we had this much stuff in this field at ISU back when I was a student! A version of this is also being held annually where high school teams are the defenders and college students are the attackers.