What is Identify Function?
Definition
The Identify function in NIST CSF focuses on developing organizational understanding of cybersecurity risks to systems, assets, data, and capabilities. It encompasses asset management, business environment understanding, governance, risk assessment, risk management strategy, and supply chain risk management.
In Depth
The Identify function establishes the foundation for all other cybersecurity activities by ensuring the organization understands its environment, the resources that support critical functions, and the cybersecurity risks it faces. Key categories within this function include asset management (inventorying hardware, software, data, and external information systems), business environment (understanding the organization's mission, objectives, and stakeholders), governance (establishing cybersecurity policies, roles, and legal requirements), risk assessment (identifying and evaluating cybersecurity risks), and supply chain risk management (understanding and managing risks associated with the supply chain). Without the Identify function, organizations cannot effectively prioritize their security investments or determine which assets require the most protection. In practice, implementing the Identify function involves creating comprehensive asset inventories, conducting regular risk assessments, mapping data flows, understanding regulatory obligations, and establishing a governance structure with clear accountability for cybersecurity decisions. Organizations at higher implementation tiers integrate the Identify function into their overall enterprise risk management processes.
Related Frameworks
Related Terms
NIST Cybersecurity Framework
The NIST Cybersecurity Framework (CSF) is a voluntary framework developed by the National Institute of Standards and Technology for managing cybersecurity risk. Version 2.0, released in 2024, organizes cybersecurity activities into six core functions: Govern, Identify, Protect, Detect, Respond, and Recover.
Protect Function
The Protect function in NIST CSF addresses the implementation of appropriate safeguards to ensure delivery of critical services. It covers identity management, access control, awareness training, data security, information protection processes, maintenance, and protective technology.
Risk Assessment
Risk assessment is the systematic process of identifying, analyzing, and evaluating information security risks to an organization. It involves determining the likelihood and impact of threats exploiting vulnerabilities, then prioritizing risks for treatment through mitigation, transfer, avoidance, or acceptance.
Asset Management
Asset management in information security involves maintaining an accurate inventory of all hardware, software, data, and cloud resources an organization uses. It ensures all assets are identified, classified, assigned ownership, and protected according to their value and sensitivity.
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