A heat map is a graphical representation of the organization’s risk profile that shows the relative level of risk for each risk category or event. A heat map uses colors, shapes, or symbols to indicate the magnitude and likelihood of each risk, as well as its trend and status. A heat map offers the simplest overview of changes in the organization’s risk profile, as it allows the risk decision-makers to quickly identify the most significant risks, theareas of improvement or deterioration, and the gaps or overlaps in risk management. A heat map can also be used to communicate the risk profile to senior management and other stakeholders in a clear and concise manner. References = Risk and Information Systems Control Study Manual, Chapter 2: IT Risk Assessment, Section 2.3: IT Risk Assessment Methods and Techniques, Page 77; Future Risks: How organizations see changes in risk management - Aon.