What is the initial action taken after a security incident occurs?

The initial action taken after a security incident occurs is referred to as "First Response." This term encompasses the immediate actions taken by the incident response team to address the security incident effectively. The First Response is crucial because it lays the groundwork for how the incident is managed and resolved. It typically includes verifying the incident, assessing its impact, containing the threat, and beginning the process of recovery.

This response is time-sensitive, as delays can lead to more significant damage, data loss, or increased risk to other systems. Proper execution of the First Response helps to stabilize the situation and prevents further escalation of the incident.

While documenting and other actions may be part of the overall incident response process, the primary focus immediately following an incident is to act swiftly to respond to and mitigate any immediate threats, which is encapsulated in the concept of First Response.