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.
Install anti-virus software on all endpoints.
Update the firewall rules to prevent future attacks.
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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What does it mean to determine the full scope of the intrusion?
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Why is it important to understand the full scope before taking action?
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What are some common methods used to assess the scope of an incident?