Risk Severity Calculator
Assess and quantify cybersecurity risks using industry-standard methodologies. Calculate inherent risk scores based on likelihood and impact, apply CIA triad modifiers, and determine residual risk after controls.
CIA Triad Impact
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Quantify Your Cybersecurity Risks
Risk severity assessment is fundamental to cybersecurity management. This calculator implements ISO 27001 and NIST Cybersecurity Framework methodologies to help you quantify risks using a standard 5×5 matrix approach, applying CIA triad considerations and existing control effectiveness.
Why Calculate Risk Severity?
Prioritize Security Investments
Quantified risk scores help you allocate limited security budgets to the highest-impact threats.
Demonstrate Due Diligence
Documented risk assessments show auditors and regulators that you follow structured risk management practices.
Enable Risk-Based Decisions
Transform subjective security concerns into objective scores that executives can compare and act upon.
Track Risk Reduction
Measure how security controls reduce residual risk over time and justify continued investment.
How to Calculate Risk Severity
Frequently Asked Questions
A 5×5 risk matrix plots likelihood (1-5) against impact (1-5) to create 25 possible risk positions. The resulting score (1-25) is typically grouped into risk levels: Minimal (1-4), Low (5-9), Medium (10-14), High (15-19), and Critical (20-25). This standardized approach enables consistent risk communication across organizations.