In cybersecurity, 'Highest and Best Use' (HBU) is borrowed from real estate and refers to optimizing the use of digital assets, resources, or infrastructure for maximum value and security. This involves evaluating how systems, data, or technologies can be best utilized, considering current threats, organizational goals, and compliance requirements. The HBU analysis ensures that cybersecurity investments and strategies are aligned with the organization's mission, providing the greatest benefit while minimizing risks. This approach helps prioritize security initiatives, allocate resources efficiently, and justify expenditures by demonstrating their optimal impact on the organization's overall security posture.