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CompTIA CySA+ CS0-004 · Domain 3: Incident response & management

Eradication and recovery: reimaging, removing persistence, restoring from clean backups, patching the entry point

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Last reviewed September 30, 2026 · Leer en español

Containment stops the bleeding; eradication removes the cause, and recovery returns systems to normal operation. Doing these thoroughly determines whether the attacker is truly gone or simply waiting to return. Many organizations have suffered a second incident within weeks because they cleaned the visible malware but left a backdoor, reused compromised passwords or restored infected backups.

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