NIST Cybersecurity Framework
NIST Cybersecurity Framework (NIST CSF) is a set of standards and best practices for managing cybersecurity risk, developed by the National Institute of Standards and Technology. CSF organizes security activities into five functions: Identify, Protect, Detect, Respond, Recover.
What is NIST Cybersecurity Framework?
NIST CSF Definition
NIST Cybersecurity Framework is a voluntary standard developed by the U.S. National Institute of Standards and Technology (NIST), providing guidelines for managing cybersecurity risk. First published in 2014, the framework has become a global standard used worldwide, not just in the USA.
Five Core Functions
Identify:
- Asset management
- Business environment
- Risk assessment
- Governance
Protect:
- Access control
- Awareness and training
- Data security
- Protective technology
Detect:
- Anomalies and events
- Continuous monitoring
- Detection processes
Respond:
- Response planning
- Communications
- Analysis
- Mitigation
Recover:
- Recovery planning
- Improvements
- Communications
Framework Components
Framework Core:
- 5 Functions
- 23 Categories
- 108 Subcategories
- Informative references
Implementation Tiers:
- Tier 1: Partial
- Tier 2: Risk Informed
- Tier 3: Repeatable
- Tier 4: Adaptive
Framework Profiles:
- Current state profile
- Target state profile
- Gap analysis
NIST CSF 2.0
Version 2.0 (2024) introduced:
- Govern function - a new sixth function
- Greater emphasis on supply chain
- Expanded guidance for small organizations
- Better international alignment
Why Use NIST CSF?
- Flexibility: Adapts to different organization sizes
- Universal: Applicable across sectors
- Benchmark: Enables maturity comparison
- Integrable: Works with ISO 27001, COBIT
- Risk-based: Focus on business risk
NIST CSF vs ISO 27001
| Aspect | NIST CSF | ISO 27001 |
|---|---|---|
| Nature | Guidelines | Standard for certification |
| Certification | No | Yes |
| Approach | Risk-based | Control-based |
| Region | USA (global adoption) | International |
Many organizations use both: NIST CSF as a risk framework and ISO 27001 for certification.
NIST Cybersecurity Framework is a fundamental tool for building and maturing cybersecurity programs, providing structure and common language.