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Glossaire

Définitions claires des termes d'exercice et de réponse à incident utilisés sur le site.

Les articles paraissent d'abord en anglais. Ces liens ouvrent la version anglaise.

After-action report (AAR)
A written analysis produced after an exercise or incident that documents strengths, areas for improvement, root causes and an improvement plan.
Hotwash
The structured debrief held immediately after an exercise or incident, capturing what worked, what did not and the most important fixes.
HSEEP
The Homeland Security Exercise and Evaluation Program: a US methodology for designing, conducting, evaluating and improving exercises.
Incident commander
The person with overall authority for managing an incident response: setting priorities, assigning tasks and coordinating decisions and communications.
Inject
A piece of information introduced during a tabletop exercise, such as an alert, call or email, that moves the scenario forward and prompts decisions.
MSEL (Master Scenario Events List)
The ordered list of all injects in an exercise, with timing, delivery method, recipients, expected actions and the objective each supports.
Out-of-band communications
Communication channels that are independent of the systems affected by an incident, used when corporate email, chat or identity may be compromised.
Playbook
A documented, scenario-specific set of steps, decisions and contacts that guides responders through a particular type of incident.
Recovery time objective (RTO)
The maximum acceptable time to restore a business process or system after a disruption, set by the business and used to design recovery.
Tabletop exercise
A discussion-based exercise in which a team talks through a simulated incident to test plans, roles and decisions without touching real systems.
Traffic Light Protocol (TLP)
A labelling scheme (TLP:RED, AMBER, GREEN, CLEAR) that tells recipients how widely they may share sensitive information.
White cell
The exercise-control team that plays every party not in the room, such as the attacker, regulator, media or vendor, and manages the flow of injects.