Incident Timeline and Action Log

Purpose

Use this log throughout an incident to record what happened, what was discovered, decisions made, and actions taken.

Maintain one authoritative timeline wherever practical.

Incident Information

Incident ID: ____________________

Incident Lead: ____________________

Start date: ____________________

Timeline

Date / Time Event or Finding Action Taken Person Result / Evidence
         
         
         

Record Events Such As

  • Initial detection
  • Employee reports
  • Security alerts
  • Account changes
  • Device isolation
  • Session revocation
  • Password resets
  • Evidence collection
  • Vendor contact
  • Insurance notification
  • Leadership decisions
  • System shutdowns
  • Recovery actions
  • Customer communications
  • Return to service

Important Decisions

Decision: ____________________

Time: ____________________

Decision maker: ____________________

Reason: ____________________

Information available at the time: ____________________

Outstanding Actions

Action: ____________________

Owner: ____________________

Due: ____________________

Status: ____________________

Practical Rule

Write down important events and decisions as they happen.

Reconstructing an incident from memory later is unreliable.