What type of network behavior might signal a security issue in an organization's systems?

Odd network traffic is a significant indicator of potential security issues within an organization's systems because it often deviates from established patterns of normal behavior. This anomaly could manifest itself in various forms, such as unusual data transfers, unexpected connection attempts to uncommon ports, or traffic spikes during off-hours.

Monitoring network traffic is critical for identifying potential threats, as malicious actors typically use non-standard protocols or exhibit atypical behavior to avoid detection. When network traffic patterns change unexpectedly, it can signal various problems, including malware infections, data exfiltration attempts, or unauthorized access.

While geographic anomalies can also indicate security threats, they typically pertain to access patterns occurring from unexpected locations rather than the actual shift in traffic behavior. High call volume may reflect operational issues rather than security concerns, and unauthorized changes, while important, may not necessarily be accompanied by changes in network traffic. Hence, recognizing odd network traffic serves as a more direct and immediate indicator of potential security issues.