Monitoring

Monitoring: The continuous observation of systems, identities, networks, and controls for relevant changes. Effectiveness depends on reliable data, defined ownership, measurable criteria, and regular tuning.

How it works and where it fits

Monitoring connects data sources to detection or assessment logic. Raw records become security-relevant only when timing, identity, system context, and expected behavior are considered. Rules, correlations, statistical models, and analyst decisions may work together; no single method reliably covers every attack pattern.

Practical security relevance

Operational quality is reflected in coverage, data completeness, detection time, and false-alert workload. Data sources need owners, time synchronization, retention, and quality controls. Detections should be tested, versioned, and improved using real incidents. Every meaningful alert also requires triage guidance, escalation, and possible response actions.

Related concepts

• Continuous MonitoringContinuous MonitoringOngoing monitoring and assessment of security states, events, and deviations.: Ongoing monitoring and assessment of security states, events, and deviations.
• LoggingLoggingThe recording of security-relevant events so activity can be monitored, investigated, and audited.: The recording of security-relevant events so activity can be monitored, investigated, and audited.
• DetectionDetectionThe capability to identify suspicious activity, attacks, or policy violations in time.: The capability to identify suspicious activity, attacks, or policy violations in time.
• TelemetryTelemetryAutomatically collected measurements and events that describe the state and behavior of systems.: Automatically collected measurements and events that describe the state and behavior of systems.