What is the primary role of threat hunting in cybersecurity?

The primary role of threat hunting in cybersecurity is to proactively search for potential threats or breaches. This approach involves actively seeking out indicators of compromise and patterns of malicious activity within an organization's network, rather than waiting for automated detection systems to identify threats. By engaging in threat hunting, security analysts can uncover hidden threats that may not have triggered alerts from existing security tools. This proactive measure helps in identifying vulnerabilities and preventing future breaches, ensuring a stronger security posture.

The other options pertain to important aspects of cybersecurity but do not directly reflect the proactive nature of threat hunting. Isolating affected systems after a breach is part of incident response, which addresses issues after they have occurred. Implementing new security policies is a preventative measure but does not involve actively searching for threats. Responding to ongoing attacks is reactive, focusing on managing incidents that are currently in progress rather than searching for potential threats that could lead to such incidents.