In the realm of cybersecurity, understanding security posture assessments is crucial for organizations to manage and mitigate risks effectively as part of a cyber GRC program that can produce benchmarks and scores that indicates low to high cybersecurity risk.
If you’re researching a ‘NIST rating scale,’ here’s the short, accurate version: NIST doesn’t publish a single rating. It publishes four Implementation Tiers, a qualitative maturity model, not a numeric score. This page walks through what the Tiers actually are, how the related concept of NIST Cyber Risk Scoring works, and where the ‘scoring’ language most people are picturing actually comes from.
What is the NIST Rating Scale?
The NIST rating scale is a part of the NIST’s broader framework for managing cybersecurity risks. This scale assists organizations in understanding, managing, and communicating about cybersecurity risks, making the NIST risk rating table a crucial tool for any cybersecurity initiative.
NIST Risk Assessment Matrix / NIST Risk Rating Table
Additional Resources
What is the NIST Cyber Risk Score?
What are the Tiers of NIST?
NIST’s framework is segmented into different implementation tiers to help organizations gauge their approach towards managing cybersecurity risks. Utilizing a NIST risk assessment template can aid in understanding where an organization stands in terms of its cybersecurity readiness. The NIST scoring methodology further breaks down the evaluation process, making it helpful for organizations to identify areas of improvement within the implementation tiers.
- Tier 1 (Partial): Organizations have an uncoordinated and reactive approach to managing cybersecurity risks.
- Tier 2 (Risk Informed): Risk management practices exist but are not part of a comprehensive strategy.
- Tier 3 (Repeatable): A formalized risk management approach is in place, which is regularly updated based on organizational changes.
- Tier 4 (Adaptive): Organizations have a proactive approach to managing cybersecurity risks with continuous improvement embedded in their risk management process.
Image: NIST Framework Implementation Tiers, source: https://www.nist.gov/cyberframework/online-learning/cybersecurity-framework-components
What is NIST Cybersecurity Risk Scoring?
The process of evaluating cybersecurity risks within the NIST framework is termed as NIST cybersecurity risk scoring. This encompasses utilizing the NIST cybersecurity framework alongside a NIST risk assessment template to carry out a systematic assessment of cybersecurity risks faced by an organization. Scoring helps in prioritizing risks and allocating resources efficiently to address the most critical vulnerabilities. This provides an “integrated view of NIST risk posture across the enterprise with quantitative metrics across systems and components”
“Risk Scoring provides a foundation for quantitative risk-based analysis, assessment, and reporting of organizational IT assets. By applying ratings to controls and generating scores for components, stakeholders have a relative understanding of risk from one system compared to another. The variables that can affect a control’s potential risk score is outlined below.”
| Variable | Description | What It Considers |
|---|---|---|
| Control Baseline Risk Score | Every control gets an initial weighting (1-10) based on its importance to security and privacy posture | What’s the potential security impact of this control? |
| Data Type Questionnaire Responses | Initial confidentiality, integrity, and availability ratings (1-10) assigned based on the criticality of the information involved | What’s the impact of a C/I/A failure for the data types used within this component? |
| Risk Profile Questionnaire Responses | Additional adjustments applied based on business-risk-specific questionnaire responses | What assets or applications are part of this component, and what’s the potential enterprise impact? |
Source: NIST Cyber Risk Scoring (CRS) Program Overview
Source: NIST Cyber Risk Scoring, https://csrc.nist.gov/CSRC/media/Presentations/nist-cyber-risk-scoring-crs-program-overview/images-media/NIST%20Cyber%20Risk%20Scoring%20(CRS)%20-%20Program%20Overview.pdf
Understanding Where You Stand Isn’t the Same as Staying Current
A Tier rating, like any point-in-time assessment, reflects what was true when it was calculated. Controls drift. Configurations change. A Tier 3 rating from six months ago doesn’t confirm anything about your environment today. FortifyData’s approach continuously maps live technical findings to your NIST CSF profile, so the picture reflects your current environment rather than a snapshot from the last review cycle. This is the same point-in-time problem security posture assessments run into more broadly.
Curious what a continuously current NIST CSF picture would actually show you? Talk to us about compliance.
