A heat map is a graphical tool that displays the level of risk severity for various risk scenarios or categories using different colors, shapes, or sizes. A heat map is most helpful in providing a high-level overview of current IT risk severity, as it can show the relative importance and urgency of the risks, and highlight the areas that require attention or action. A heat map can also help to communicate the risk information to the stakeholders, and facilitate the risk prioritization and decision making. References = 5