Build an incident timeline that helps your team
An orderly timeline prevents gaps and reduces duplicate work during a confusing event.
Separate what you observed from what you infer.
The working idea
Separate what you observed from what you infer.
The goal is not to guess the answer faster. It is to make a decision that another person can understand and repeat.
What to check
Write time, timezone, source, action, and confidence for each entry. Mark unknowns rather than filling them with guesses. Keep the original evidence in its authorized location.
The goal is not to guess the answer faster. It is to make a decision that another person can understand and repeat.
A realistic example
At 09:13, a service alerted; at 09:18, an operator confirmed high error rates. Those are two observations, not proof of an attacker.
Good security work usually becomes visible through notes, tests, and the questions you decide to ask next. Keep the first iteration small.
What to avoid
Avoid retroactively editing the original notes to make a story look cleaner. Add corrections with timestamps.
Good security work usually becomes visible through notes, tests, and the questions you decide to ask next. Keep the first iteration small.
Draft five timeline entries for a harmless device reboot or test service outage.
Good security work usually becomes visible through notes, tests, and the questions you decide to ask next. Keep the first iteration small.
