Which of the following best describes HIDS?

The choice that best describes HIDS (Host-based Intrusion Detection Systems) is the focus on detecting threats specific to individual devices. HIDS is designed to monitor and analyze the activity on a particular host or device, such as a server or workstation. It looks at various activities on that specific machine, including system calls, file modifications, and configurations, to identify any potentially malicious behavior or policy violations.

This specificity allows HIDS to identify threats that may not be visible from a network perspective since it operates at the host level. It is particularly useful for detecting insider threats or malicious activities that originate from within the system being monitored.

In contrast, other options relate to different types of intrusion detection systems or characteristics of network versus host-based detection methodologies. For instance, monitoring multiple networks at once pertains more to NIDS (Network-based Intrusion Detection Systems), which analyze network traffic across various devices. Analyzing traffic organization-wide again describes a broader network monitoring capability rather than the focused approach of HIDS. Additionally, while resource intensity can vary, HIDS is often more resource-intensive than NIDS due to the need to analyze activities on a single device thoroughly.