What is cyber forensics and how does it factor in to cyber defense?
"Cyber Forensics is the art and science of extracting data from digital media whereas cyber defense uses cyber forensics to identify threats and respond to incidents. However, there are several steps necessary to ensure a strong defensive posture. For example, conducting forensics analysis on a hard drive after a computer intrusion might help you determine what vulnerabilities the system may have had that were ultimately exploited by an attacker. Network forensic analysis will help you identify malicious activity when traditional signature based cyber defense tools fail."