Which phase involves preparing incident response documentation?

The phase that involves preparing incident response documentation is identified as incident recording. This aspect of incident management is crucial, as it establishes a comprehensive account of the incident, including essential details such as timelines, actions taken, personnel involved, and the resources utilized. Recording this information systematically is vital for two primary reasons: facilitating an effective response to the current incident and providing a basis for future improvements in incident handling processes.

During the incident recording phase, the collection of data is structured to ensure clarity and accuracy, enabling a thorough understanding of what occurred during the incident. This documentation serves not only as a record for the current event but also as a critical resource for learning and developing strategies to mitigate similar incidents in the future.

In contrast, the other phases, while important, focus on different aspects of incident management. The incident investigation phase centers on analyzing the incident to understand its cause and impact, while post-incident analysis involves evaluating the response's effectiveness and determining lessons learned after an incident has been resolved. Containment, on the other hand, plays a role in stopping further harm from an incident in progress, but it does not focus on documentation per se. Thus, incident recording stands out as the correct answer in this context.