The primary function of an Intrusion Detection System (IDS) is to monitor network traffic for suspicious activities and potential security breaches. IDS solutions analyze data packets for signs of malicious behavior and alert administrators to threats in real time. They can be categorized into network-based and host-based systems, each focusing on different areas of security. Implementing IDS enhances an organization’s capacity to react promptly to threats, thereby fortifying overall cybersecurity and maintaining the integrity of critical information systems.