Indicator of Compromise
Also known as:IoC
Indicator of Compromise: Technical artifact indicating a potential compromise. This capability processes information about threats and attackers in an actionable format. Source evaluationSource EvaluationAssessment of a source's reliability, relevance, timeliness, and potential bias., context, currency, structured dissemination, and feedback into protective measures determine the utility.
How it works and where it fits
Indicator of Compromise 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
- Incident ResponseIncident ResponseA structured process for the preparation, detection, containment, eradication, and post-incident review regarding security incidents.: A structured process for the preparation, detection, containment, eradication, and post-incident review regarding security incidents.
- Security Operations CenterSecurity Operations CenterA central function for the continuous monitoring, analysis, and response to security events.: A central function for the continuous monitoring, analysis, and response to security events.
- Incident TriageIncident TriageRapid classification and prioritization of a potential security incident.: Rapid classification and prioritization of a potential security incident.
- Detection EngineeringDetection EngineeringSystematic development, testing, and maintenance of rules for attack detection.: Systematic development, testing, and maintenance of rules for attack detection.