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The process of identifying, estimating, and prioritizing risks to inform decisions and mitigations.
DESCRIPTION
Risk Assessment evaluates threats, vulnerabilities, likelihood, and impact to determine risk levels for assets and operations. It informs control selection, prioritization, and investment decisions in risk management. Approaches include qualitative, semi-quantitative, and quantitative (e.g., FAIR). Regular reassessments capture environment changes and new threats. Clear scoping and stakeholder input improve assessment fidelity.
ALTERNATIVE DEFINITIONS
NIST SP 800-30 Rev. 1
Risk assessment is the process of identifying, estimating, and prioritizing risks to organizational operations (including mission, functions, image, and reputation), organizational assets, individuals, other organizations, and the Nation, resulting from the operation and use of information systems.
Comprehensive scope across operations, assets, individuals, and the Nation.
ISO 31000
Risk assessment is the overall process of risk identification, risk analysis and risk evaluation.
Defines assessment as a three-part process in risk management.
RELATED TERMS
Risk Management Threat Modeling Control Assessment Residual Risk Likelihood Impact Risk Appetite Meta AI Data Protection Impact Assessment
COMPETING TERMS
Vulnerability Assessment
KNOWLEDGE AREAS
Data Security Data Privacy & Compliance AI Governance Data Management
TARGET AUDIENCE
Chief Information Security Officer IT Auditor Security Architect Data Privacy Officer IT Manager Chief Information Officer Data Governance Manager
EXTERNAL SOURCES
- Wikipedia - Risk assessment
- NIST - Guidance for conducting risk assessments.
- ISO - Risk management principles and process.
- FAIR Institute - Quantitative cyber risk model overview.
TOP QUESTIONS
Why is Risk Assessment essential for security programs?
It prioritizes limited resources toward the most significant risks, aligning controls and investments with business impact and risk appetite.
Category: Relevancy
What are the main steps in Risk Assessment?
Define scope, identify assets and threats, assess likelihood and impact, evaluate existing controls, determine residual risk, and recommend treatments.
Category: Process
What is the difference between qualitative and quantitative Risk Assessment?
Qualitative uses ordinal scales; quantitative estimates losses in financial terms. Hybrid approaches provide practicality with improved decision making.
Category: Comparison
How often should Risk Assessments be performed?
At least annually for key systems and after major changes, incidents, or regulatory triggers. Critical environments may require more frequent reassessments.
Category: Best practices
What are common mistakes in Risk Assessment?
Vague scope, confusing threats with vulnerabilities, ignoring dependencies, and failing to validate assumptions with stakeholders lead to unreliable results.
Category: Mistakes
How does Risk Assessment relate to Threat Modeling?
Threat Modeling informs risk identification and likelihood, while Risk Assessment prioritizes across assets and business impact for treatment decisions.
Category: Relationship
What is residual risk in Risk Assessment?
Residual risk is what remains after controls are applied. Decisions include accepting, mitigating, transferring, or avoiding it.
Category: Concept
What frameworks support Risk Assessment?
NIST SP 800-30, ISO 31000, and FAIR provide methods ranging from qualitative to quantitative analysis.
Category: Frameworks
How do you communicate Risk Assessment results?
Use clear risk registers, heat maps, and financial impact where possible. Tie recommendations to business objectives and risk appetite.
Category: Communication