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How do you write a post-incident analysis report?

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A post-incident analysis report (PIAR) is a document that summarizes the key information and lessons learned from a cybersecurity incident. It helps you improve your security posture, identify root causes, and prevent future breaches. Writing a PIAR can be challenging, but it is an essential part of the incident response process. Here are some tips on how to write a PIAR that is clear, comprehensive, and actionable.

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Ilkin J.

Senior Penetration Tester & Real Ethical Hacker | PCIP

1 Define the scope

The first step of writing a PIAR is to define the scope of the incident and the report. You need to specify what type of incident occurred, when and where it happened, who was involved, what systems and data were affected, and what impact it had on your organization. You also need to state the purpose and audience of the report, and the sources and methods of data collection and analysis. This section sets the context and boundaries of the report, and helps you focus on the most relevant and important aspects of the incident.

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Ilkin J.

Senior Penetration Tester & Real Ethical Hacker | PCIP
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Be as specific as possible when defining the incident and its impact. Consider the purpose and audience of the report when defining the scope. Identify the key questions that need to be answered by the PIAR. Communicate the scope of the PIAR to all stakeholders involved in the incident response process.

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2 Describe the timeline

The next step of writing a PIAR is to describe the timeline of the incident and the response. You need to provide a chronological overview of the key events and actions that took place before, during, and after the incident. You should include details such as the date and time of detection, notification, containment, eradication, recovery, and closure of the incident. You should also highlight the roles and responsibilities of the incident response team and other stakeholders, and the communication and coordination mechanisms that were used. This section helps you understand the sequence and duration of the incident and the response, and identify any gaps or delays that occurred.

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Ilkin J.

Senior Penetration Tester & Real Ethical Hacker | PCIP
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Be as specific as possible when describing the key events and actions that took place. Include the date and time of each event and action. Identify the roles and responsibilities of the key stakeholders involved in the incident response process. Describe the communication and coordination mechanisms that were used. Highlight any gaps or delays that occurred in the incident response process.

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3 Analyze the causes

The third step of writing a PIAR is to analyze the causes of the incident and the response. You need to conduct a root cause analysis (RCA) to determine what factors and conditions contributed to the occurrence and escalation of the incident. You should also evaluate the effectiveness and efficiency of the response, and identify what worked well and what did not. You should use evidence and data to support your analysis, and avoid blaming or criticizing individuals or teams. This section helps you learn from the incident and the response, and find out what can be improved or changed.

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4 Recommend the actions

The final step of writing a PIAR is to recommend the actions that should be taken to prevent or mitigate similar incidents in the future. You need to propose specific, measurable, achievable, relevant, and time-bound (SMART) actions that address the root causes and gaps that you identified in the previous section. You should also assign roles and responsibilities for implementing and monitoring the actions, and set deadlines and milestones for completion. You should prioritize the actions based on their urgency and impact, and align them with your security goals and strategies. This section helps you create a plan of action that is realistic and effective.

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5 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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How do you write a post-incident analysis report?

1

2

3

4

5

1 Define the scope

2 Describe the timeline

3 Analyze the causes

4 Recommend the actions

5 Here’s what else to consider

Cybersecurity

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How do you write a post-incident analysis report?

1

2

3

4

5

1 Define the scope

2 Describe the timeline

3 Analyze the causes

4 Recommend the actions

5 Here’s what else to consider

Cybersecurity

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感谢您的反馈

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