What Is NIST CSF?
The NIST Cybersecurity Framework (CSF) is a voluntary framework created by the National Institute of Standards and Technology to help organizations manage and reduce cybersecurity risk. Originally published in 2014 and updated to version 2.0 in 2024, it provides a common language for understanding, managing, and expressing cybersecurity risk.
Unlike prescriptive standards like PCI DSS, NIST CSF does not mandate specific controls. Instead, it provides a flexible structure that organizations adapt to their size, industry, and risk profile. This flexibility is both its greatest strength and its biggest challenge.
Why NIST CSF Was Created
Executive Order 13636 directed NIST to develop a voluntary cybersecurity framework for critical infrastructure. The resulting framework quickly expanded beyond critical infrastructure — today it is used by organizations of every size and sector as a foundation for their cybersecurity programs.
The Three Components
NIST CSF consists of three main components. The Framework Core provides a set of cybersecurity activities organized into functions, categories, and subcategories. The Implementation Tiers describe the degree to which an organization's cybersecurity risk management practices exhibit the characteristics defined in the framework. Framework Profiles represent an organization's current and target cybersecurity posture.
NIST CSF vs Other Frameworks
NIST CSF is a risk management framework, not a certification standard. There is no NIST CSF certification or audit. It maps well to other standards — ISO 27001, SOC 2, and PCI DSS controls all align with NIST CSF functions. Many organizations use NIST CSF as their overarching framework while pursuing specific certifications for customer requirements.
Who Uses NIST CSF
NIST CSF is used across industries — from Fortune 500 companies to startups. Federal agencies reference it extensively. Cyber insurance providers increasingly ask about NIST CSF alignment. Its flexibility makes it suitable for any organization seeking a structured approach to cybersecurity.
In the next lesson, we will cover the five core functions in detail.