The correct answer is D — Likelihood.

WGU Cybersecurity Architecture and Engineering (KFO1 / D488) emphasizes that when evaluating the chance of future incidents, the focus should be on likelihood — the probability that a threat will exploit a vulnerability again. Given that a breach has already occurred, it is important to assess how likely another breach could happen without additional security measures.

Impact (A) measures consequences, not probability. Risk (B) is a combination of impact and likelihood, but to specifically focus on future potential, likelihood (D) is primary. Threat actors (C) describe adversaries, not probabilities.

Reference Extract from Study Guide:

"Likelihood refers to the probability that a specific threat will successfully exploit a vulnerability, and is a key consideration in predicting future incidents."

— WGU Cybersecurity Architecture and Engineering (KFO1 / D488), Risk Assessment Concepts

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