What is NIST Cybersecurity Framework?

The NIST CSF has become the most widely adopted cybersecurity framework globally since its initial publication in 2014. Originally developed for critical infrastructure sectors through an executive order, it has since been adopted across all industries and organization sizes. The framework operates at three levels: the core provides a taxonomy of cybersecurity outcomes organized into functions, categories, and subcategories; profiles allow organizations to describe their current and target cybersecurity posture; and implementation tiers measure the rigor of an organization's cybersecurity practices. Version 2.0 added the Govern function as the sixth core function, reflecting the growing recognition that cybersecurity governance is essential for effective risk management. The framework deliberately avoids prescribing specific controls, instead providing outcome-based guidance that organizations can implement using whatever technologies and processes fit their environment. NIST CSF's greatest strength is its ability to serve as a Rosetta Stone between different compliance frameworks — mappings exist between CSF and ISO 27001, SOC 2, HIPAA, PCI DSS, and many other standards, enabling organizations to build a unified control framework.