Framework: The NIST Cybersecurity Framework (CSF)

RS.AN-03 - Investigating Incident Causes

Framework: The NIST Cybersecurity Framework (CSF)

Show Notes

RS.AN-03 conducts detailed analysis to reconstruct incident events, identify involved assets, and pinpoint root causes, such as exploited vulnerabilities or threat actors. This includes examining deception technologies for attacker behavior insights, aiming to understand both immediate triggers and systemic issues. It provides the foundation for effective response and prevention. This subcategory enhances response by delivering actionable findings, aligning analysis with risk priorities to address critical weaknesses. It supports forensics and recovery by uncovering underlying causes, reducing recurrence risks. RS.AN-03 drives a thorough understanding of incident dynamics.

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RC.CO-04 involves sharing public updates on incident recovery using approved channels and messaging, such as breach notifications or preventative steps, to inform affected parties or the broader community. This ensures transparency about recovery efforts and future safeguards, maintaining public trust. It addresses external expectations post-incident. This subcategory aligns with legal and risk requirements, ensuring communications are consistent and controlled to avoid misinformation. It supports reputation management by explaining recovery actions clearly and responsibly. RC.CO-04 bridges organizational recovery with public accountability.

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RC.CO-03 ensures recovery activities and progress are shared with designated stakeholders—like leadership and suppliers—consistent with response plans and agreements. This includes regular updates on restoration status, adhering to contractual protocols for information sharing. It keeps all parties informed and aligned during recovery. This subcategory aligns communication with risk and operational needs, fostering trust and coordination with critical partners. It supports a unified recovery effort by ensuring transparency on progress and challenges. RC.CO-03 sustains stakeholder engagement through the restoration phase.

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RC.RP-05 verifies the integrity of restored assets—checking for lingering threats or root causes—before returning systems to production, confirming normal operations. This involves testing restoration adequacy to ensure functionality and security are fully restored. It finalizes recovery with assurance. This subcategory aligns with risk goals by ensuring restored systems are secure and operational, preventing recurrence from overlooked issues. It supports confidence in recovery outcomes through rigorous validation. RC.RP-05 completes the restoration process with integrity.

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