The Adversarial Tactics, Techniques and Common Knowledge (ATT&CK) knowledge-base serves as a globally accessible curated knowledge-base of cybersecurity attacker tactics and techniques based on real world observations. This repository serves as an indispensable tool for cybersecurity planners and analysts in defining protections against known tactics and in forensics analyses of detected incidents. This webinar will provide an overview of the structure and usage of the ATT&CK knowledge-base with an emphasis on DDI related techniques and how you can use your DDI system to aid in defense and detection.