Active Defense is a proactive means of coping with cyber security challenges. Instead of waiting for the next threat, or cyber attack to appear, the organization and its processes should be ready for it, with different means. Active monitoring, active counterstrike, incident management, risk management, crisis communications, forensics and resilience. Management and Board should be ready to take decisions and actions, and be prepared for company damage.
Some related documentation and related members active in the domain :
2015 : From the event Active Defense with Trasys, RSA, McAfee and Brainwave