The primary function of a threat detection system in cybersecurity is to identify and respond to potential security threats or breaches within an organization's network. These systems utilize various techniques, including intrusion detection systems (IDS) and behavioral analysis, to monitor for suspicious activities or anomalies. Upon detecting a threat, the system alerts security teams, enabling quick intervention to prevent data loss or system compromise. Effective threat detection is essential for safeguarding sensitive information and ensuring overall network integrity and security.