{"id":18606,"date":"2026-08-21T08:05:52","date_gmt":"2026-08-21T12:05:52","guid":{"rendered":"https:\/\/www.netwitness.com\/?post_type=glossary&p=18606"},"modified":"2026-08-21T08:32:41","modified_gmt":"2026-08-21T12:32:41","slug":"root-cause-analysis-rca","status":"publish","type":"glossary","link":"https:\/\/www.netwitness.com\/ja\/cyber-glossary\/root-cause-analysis-rca\/","title":{"rendered":"Root Cause Analysis (RCA)"},"content":{"rendered":"\t\t
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What is Root Cause Analysis (RCA)?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Root Cause Analysis (RCA)<\/span><\/b> is a structured way to determine why an incident, failure, or security problem happened instead of stopping at the immediate symptom. In cybersecurity, RCA helps teams trace a security incident back through the events, conditions, vulnerabilities, and actions that contributed to it.<\/span>\u00a0<\/span><\/p>

For example, finding that an account was compromised tells a security team what happened. Root cause investigation goes a step further by asking how the account was compromised, what allowed the activity to succeed, when the weakness was introduced, and which controls failed to prevent or detect it.<\/span>\u00a0<\/span><\/p>

A good <\/span>root cause analysis process<\/span><\/b> combines evidence from logs, alerts, network activity, endpoint data, configuration changes, user activity, and other relevant sources. The result is a clearer explanation of what happened and what needs to change to prevent a similar incident.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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Synonyms<\/h2>\t\t\t\t<\/div>\n\t\t
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