How to Document a Cybersecurity Incident
Documentation during an incident serves multiple purposes: preserving institutional knowledge, supporting legal proceedings, and enabling post-incident review.
What to document immediately
Record when the incident was discovered, who discovered it, initial observations, and any immediate containment actions taken. Include timestamps for every entry.
Ongoing documentation
As investigation progresses, document findings, hypotheses tested, evidence collected, and decisions made. Note who made each decision and why.
Post-incident documentation
After resolution, compile a timeline, root cause analysis, remediation actions taken, and recommendations for preventing recurrence.
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