Which of the following is a common method for detecting cyber threats?

Network monitoring tools are essential for detecting cyber threats because they enable continuous observation and analysis of network traffic flows and communications. These tools are designed to identify abnormal patterns, unauthorized access attempts, malware activities, and other indicators of a security breach or cyber threat in real time. They collect and analyze vast amounts of data from various sources within the network, which helps in spotting unusual activities that could signify an impending attack or security incident.

In contrast, random guesswork lacks any systematic approach and would not effectively identify or mitigate cyber threats. Physical security measures generally address threats related to physical access and do not directly relate to cyber threats, which are often more virtual in nature. Management reviews can provide insights into security posture and policies but do not actively monitor or detect cyber threats as they happen. Thus, network monitoring tools serve as a proactive and strategic measure for identifying potential cyber threats before they can cause significant damage.