What does 'risk layering' entail?

Risk layering involves implementing multiple layers of controls to mitigate risks effectively. This approach is based on the principle that a single layer of control may not be sufficient to manage complex risks, especially in environments where threats are varied and evolving. By using a layered defense strategy, organizations can create redundancies and ensure that if one control fails, others are in place to protect the organization and reduce overall vulnerability.

This method allows for a more robust defense by integrating different types of controls, such as preventive, detective, and corrective measures, each addressing various aspects of risk. For example, a security strategy might include firewalls (preventive), intrusion detection systems (detective), and incident response plans (corrective). Layering these controls helps to create a comprehensive defense mechanism that bolsters risk management efforts.

In contrast, the other options fail to capture the essence of risk layering. Reducing controls for efficiency could leave organizations vulnerable, while developing a single comprehensive risk policy may overlook the need for diverse strategies tailored to specific risks. Analyzing risks in isolation could lead to gaps in understanding interconnected risks, which layering seeks to mitigate by addressing them in a more holistic way.