Which set of inputs are recognized sources that can trigger continual improvement of the ISMS?
A.Only external certification audits
B.Only the annual budget cycle
C.Audit findings, security incidents, performance metrics, and management review outputs
D.Only customer complaints submitted in writing
Why C is correct
Improvement is driven from many sources including internal and external audit findings, incidents, monitoring and measurement (KPIs), and management review outputs. Limiting it to a single source would miss most improvement opportunities.
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Which metric is LEAST useful for evaluating the effectiveness of the corrective action process itself?