Which indicator could signal a security incident in an organization?

Increased server memory usage can be a significant indicator of a security incident within an organization. This spike may suggest a variety of potential security threats, such as unauthorized access or a malicious software process consuming resources. For instance, malware operating on a server can lead to unusual memory usage patterns as it runs processes that exceed the normal operational baseline. Monitoring memory usage allows security teams to detect abnormal behaviors that could point to a compromise, making it an essential metric in identifying potential security incidents.

In contrast, a decrease in employee productivity may reflect many organizational issues and is not necessarily indicative of a security threat. Regular software updates are aimed at improving security posture and do not signal incidents but rather are proactive measures against them. Improvements in network connectivity typically indicate that systems are functioning well, rather than suggesting the presence of a security incident.