Which combination of factors BEST determines the level of an information security risk?
Choose one.
Risk level is a function of likelihood (a threat exploiting a vulnerability) and impact (the consequence to the business).
Threats, vulnerabilities, asset values and control strength are all inputs, but they resolve into two dimensions: likelihood and impact. The tempting option counts vulnerabilities and their scores, which measures technical weakness rather than business risk.
- Recall the two dimensions every risk rating combines.
- Check which option covers both likelihood and impact.
- Reject options that list only inputs to one dimension.
Exam tip: Risk = likelihood x impact; vulnerabilities and threats are inputs, not the risk.
CISM Information Security Risk Assessment: Identification, Analysis and Threats — the lesson that teaches this.