RS.AN-03 Root cause analysis
Analyzing what happened during an incident and why: the sequence of events, assets involved, vulnerabilities and threat actors, systemic root causes and evidence from deception technology.

Incident Analysis: root cause analysis, recording investigation actions, preserving incident data and estimating incident magnitude; four Subcategories.
Analyzing what happened during an incident and why: the sequence of events, assets involved, vulnerabilities and threat actors, systemic root causes and evidence from deception technology.
Recording the actions taken during an investigation and preserving the integrity and provenance of those records, with immutable responder logs and a detailed record kept by the incident lead.
Collecting incident data and metadata and preserving their integrity and provenance under evidence preservation and chain-of-custody procedures.
Estimating and validating an incident's magnitude by searching other potential targets for indicators of compromise and persistence, manually or with automated tools.

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