What is the BEST technique for selecting security controls on a limited budget?

The most effective technique for selecting security controls when operating on a limited budget is cost-benefit analysis. This approach allows organizations to evaluate the potential costs of implementing specific security controls against the perceived benefits, such as risk reduction and protection of assets. By focusing on the financial implications, an organization can determine which controls provide the best return on investment (ROI) and directly contribute to enhancing overall security without overextending budgetary constraints.

Cost-benefit analysis is particularly crucial in budget-limited scenarios because it guides decision-makers to prioritize security measures that not only reduce vulnerabilities but do so in a financially responsible way. This method encourages selecting controls that align with organizational risk tolerance while ensuring that resources are allocated efficiently and effectively.

While risk analysis helps identify vulnerabilities and assess the potential impacts of threats, it does not directly address the financial feasibility of implementing security measures. Annual loss expectancy calculations provide valuable insights into the financial implications of risks but lack a comparative framework for understanding how different controls can effectively mitigate those risks relative to their costs. Impact analysis assesses the consequences of security breaches; however, it does not evaluate the financial efficiency of different security measures. Thus, cost-benefit analysis stands out as the best approach when budget constraints are a significant factor in the decision-making process for security