Question 25

SLE is used to calculate the impact to an organization per cybersecurity incident.

SLE, or Single Loss Expectancy, quantifies the potential loss an organization could face from a single cybersecurity incident. This metric helps organizations assess the financial impact of specific risks.

A) SLE

SLE accurately reflects the financial impact of a single cybersecurity incident, making it essential for organizations to estimate potential losses. It is calculated by multiplying the asset value by the exposure factor, thereby providing a clear understanding of how much a particular incident could cost.

B) ALE

ALE, or Annual Loss Expectancy, estimates the total expected loss for an entire year due to specific risks. While it is important for long-term financial planning, it does not measure the impact of a single incident, which is what the question specifically asks for.

C) ARO

ARO, or Annual Rate of Occurrence, indicates how often an incident is expected to occur within a year. This metric is crucial for risk assessment, but it does not directly calculate the financial impact of an individual incident.

D) SLA

SLA, or Service Level Agreement, defines the expected level of service between a service provider and a client. It is unrelated to calculating the impact of cybersecurity incidents, thus making it irrelevant to the question at hand.

Conclusion

SLE is the definitive measure for calculating the impact of a single cybersecurity incident, as it directly correlates to the financial losses an organization can expect. In contrast, ALE, ARO, and SLA serve different purposes and do not provide a calculation of the impact per incident, reinforcing SLE's unique relevance to the question.