Final answer:
The purple team's responsibility in a cybersecurity exercise is to manage collaboration between attackers (red team) and defenders (blue team) to improve incident response at each phase, focusing on enhancing detection, containment, and remediation processes.
Step-by-step explanation:
The responsibility of a purple team in a cybersecurity exercise is to ensure collaboration between the offensive (red team) and defensive (blue team) elements during security testing. The aim is to enhance incident response capabilities. The purple team manages and facilitates the exchange of information between teams, ensuring that attack simulations provided by the red team are effectively used to strengthen defensive strategies and responses by the blue team. They focus on improving detection, containment, and remediation processes by leveraging insights from both sides. Furthermore, the purple team is responsible for developing comprehensive management plans that cover each phase of incident response, from preparation to recovery.