Criteri comuni are shared standards used to judge security issues in a consistent way across teams, tools, and cases. In cyber security, they turn subjective decisions into repeatable ones: how to score a vulnerability, when to escalate an alert, how to classify a phishing report, or what evidence is needed before closing an incident.
They matter because attackers benefit from inconsistency. If one analyst treats a warning as low risk and another treats the same pattern as critical, defenders waste time and miss patterns. Common criteria help security teams compare cases, prioritize response, and explain decisions during reviews or audits. They also support defensive workflows such as playbooks, risk scoring, access reviews, and incident triage. In practice, the stronger the shared criteria, the easier it is to reconstruct why a decision was made and to apply the same standard the next time.