What term best describes the situation when an intrusion detection system reports high-volume inbound traffic without a confirmed security compromise?

The term that best describes a situation where an intrusion detection system reports high-volume inbound traffic without a confirmed security compromise is a security event. A security event refers to any observable occurrence within a system or network. These can include log entries, alerts from security devices (like intrusion detection systems), or any other indicator of activity that might be relevant to security.

High-volume inbound traffic being reported by an intrusion detection system can indicate various activities, such as a legitimate spike in user access, a network scan, or even potentially malicious activity. However, until there is clear evidence of any malicious intent or an actual compromise of security measures, it remains classified as a security event rather than an incident or intrusion.

In contrast, a security occurrence generally refers to any instance of a potential or actual problem related to security, which may not be as specific as a security event. A security incident usually implies a confirmed breach or compromise that requires immediate response and handling. Similarly, a security intrusion denotes an active attempt to exploit vulnerabilities within the system, which is more severe than the reporting of merely high-volume traffic without any confirmation of compromise. Therefore, recognizing the distinction between these terms is crucial for effective incident response and risk management in cybersecurity.