What is the method used to calculate a risk assessment score?

The correct answer describes a fundamental principle in risk assessment known as risk scoring or risk quantification. This method is grounded in the understanding that risk can be defined as the combination of two critical factors: the likelihood of a risk event occurring and the potential impact or consequence of that event if it were to happen.

By multiplying these two elements—likelihood and impact—risk professionals are able to calculate a risk assessment score that provides a quantitative measure of the risk's severity. This score helps prioritize risks, enabling organizations to focus their resources and attention on the most significant risks that could affect their operations or objectives. This approach allows for a more systematic and objective evaluation of risks compared to purely qualitative assessments.

The other methods mentioned do not directly address the fundamental calculation of risk assessment scores. For example, analyzing previous risk events recorded can provide insights but may not yield a current risk score. Similarly, summing the number of identified vulnerabilities or calculating the total number of risk treatments implemented does not account for the severity or likelihood of those vulnerabilities impacting the organization, which is crucial for effective risk assessment.