Difference between NIST CSF 1.1 and 2.0

The NIST Cybersecurity Framework (CSF) has undergone significant updates from version 1.1 to version 2.0, reflecting changes in the cybersecurity landscape and the need for more comprehensive guidance. Here are the key differences between the two versions:

Key Differences

1. Govern Function: One of the most notable additions in CSF 2.0 is the introduction of a new "Govern" function. This function emphasizes the importance of cybersecurity governance, strategy, and policy, integrating cybersecurity risk management into broader organizational risk management. It encourages senior leadership engagement and aligns cybersecurity initiatives with organizational objectives.

2. Expanded Scope: CSF 2.0 broadens its focus beyond U.S. critical infrastructure to encompass a global audience, acknowledging the universal nature of cybersecurity threats. This expansion is designed to make the framework applicable to organizations worldwide, not just those in critical sectors.

3. Integration with Other Frameworks: The updated framework includes references to other NIST frameworks, such as the NIST Privacy Framework and the Secure Software Development Framework. This integration allows organizations to align their cybersecurity practices with a broader set of standards and frameworks.

4. Enhanced Guidance and Implementation Examples: CSF 2.0 provides more detailed guidance and practical implementation examples for its subcategories. This helps organizations translate the framework's principles into actionable steps, bridging the gap between theory and practice.

5. Supply Chain Risk Management: The guidance on cybersecurity supply chain risk management has been expanded in CSF 2.0, reflecting growing concerns in this area and the need for more comprehensive risk management strategies.

6. Continuous Improvement: CSF 2.0 emphasizes the importance of continuous improvement in cybersecurity practices. It includes references to NIST SP 800-55 for regular evaluation and improvement of cybersecurity assessments.

7. Revised Functions and Categories: While CSF 1.1 had five functions, CSF 2.0 introduces a sixth function, "Govern," and reorganizes categories and subcategories to streamline the framework. CSF 2.0 features 6 functions, 22 categories, and 106 subcategories.