After containing a confirmed security breach, an incident responder is tasked with the remediation process. What should be their FIRST step to ensure a thorough and effective remediation?
Determine the full scope of the intrusion.
Update the firewall rules to prevent future attacks.
Install anti-virus software on all endpoints.
Immediately restore all systems from backup to minimize downtime.
Before any remediation steps such as patching software, updating configurations, or improving security controls can take place, it is essential to understand the full scope of the intrusion. This understanding allows the incident responder to address all affected systems and vulnerabilities exploited by the attacker, preventing partial fixes that might leave the system vulnerable to subsequent attacks.
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Why is determining the full scope of intrusion critical before remediation?
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What methods can an incident responder use to determine the full scope of an intrusion?
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How does determining the scope prevent recurring breaches?