Eradication is the phase in the incident response process where the root cause of an incident is removed or eliminated, and all attack vectors are closed to prevent similar incidents in the future. This step follows the containment phase, where the immediate threat is isolated to prevent further damage, and precedes the recovery phase, where normal operations are restored. Eradication involves thoroughly removing malware, unauthorized access mechanisms, or any other elements used in the attack, and securing any vulnerabilities that were exploited. The goal is to ensure that the threat cannot re-emerge and that the systems are secure before they are returned to operational status.References:The EC-Council's Incident Handler (ECIH v3) certification guide outlines the incident response process, including the specific tasks involved in the eradication phase, to ensure that incident handlers are prepared to effectively remove threats from an organization's environment.