What type of system is primarily concerned with detecting and responding to breaches?

An Intrusion Detection System (IDS) is designed specifically to monitor network or system activities for malicious activities or policy violations. The primary function of an IDS is to identify potential breaches by analyzing traffic and logs. When a threat is detected, the IDS can either notify administrators or take predefined actions based on the severity of the threat.

While an IPS also addresses breaches, its main role is to actively prevent them by blocking malicious traffic in real-time. In contrast, the focus of an IDS is on detection and alerting rather than proactive prevention.

A Data Loss Prevention (DLP) system is oriented towards preventing sensitive data from being lost, misused, or accessed by unauthorized users. It controls data movements and actions pertaining to sensitive information but does not specifically detect breaches in the same manner as an IDS.

A Security Information and Event Management (SIEM) system consolidates and analyzes security events from various sources to provide a comprehensive overview of an organization's security posture. It excels at correlating logs and providing insights about security events, but its main purpose is not solely detecting breaches.

Given this context, the essence of an IDS lies in its dedicated approach to monitoring, identifying, and alerting on potential breaches, making it the most suitable answer for the question posed