The main function of an incident response team in cybersecurity is to manage and mitigate security incidents or breaches. This specialized team is responsible for detecting, analyzing, and responding to threats, ensuring minimal disruption to business operations. They develop incident response plans, conduct simulations, and continuously assess vulnerabilities to improve security posture. Their proactive approach aims to diplomatically contain security breaches, investigate their causes, and implement measures to prevent future occurrences, thereby enhancing organizational resilience.