During which stage of the ISMS lifecycle is the risk treatment plan developed?

The risk treatment plan is developed during the planning stage of the Information Security Management System (ISMS) lifecycle. This stage is crucial as it involves identifying and assessing risks that could impact the confidentiality, integrity, and availability of information assets. After conducting a risk assessment, the organization determines how to manage or mitigate those identified risks. The risk treatment plan outlines the selected risk treatment options, including the specific controls and measures that will be adopted to address each risk.

This planning is integral to ensuring that the organization has a clear direction on how to manage risks effectively before implementing any controls or monitoring their effectiveness. Therefore, having a well-defined risk treatment plan at this stage sets the foundation for the subsequent phases of the ISMS lifecycle, which include implementation, monitoring, and review.