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NIST Version 1.1. The NIST Cybersecurity Framework organizes its "core" material into five "functions" which are subdivided into a total of 23 "categories". For each category, it defines a number of subcategories of cybersecurity outcomes and security controls, with 108 subcategories in all.
In the field of information security, such controls protect the confidentiality, integrity and availability of information. Systems of controls can be referred to as frameworks or standards. Frameworks can enable an organization to manage security controls across different types of assets with consistency.
NIST's approach emphasizes a risk-based methodology, focusing on five core functions: Identify, Protect, Detect, Respond, and Recover. These principles form the backbone of many of its guidelines and frameworks, enabling organizations to assess and manage cybersecurity risks effectively.
Published in September 2006, the NIST SP 800-92 Guide to Computer Security Log Management serves as a key document within the NIST Risk Management Framework to guide what should be auditable. As indicated by the absence of the term "SIEM", the document was released before the widespread adoption of SIEM technologies.
An extension to the NIST Cybersecurity Framework is the Cybersecurity Maturity Model (CMMC) which was introduced in 2019 (though the origin of CMMC began with Executive Order 13556). [41] It emphasizes the importance of implementing Zero-trust architecture (ZTA) which focuses on protecting resources over the network perimeter.
The Risk Management Framework (RMF) is a United States federal government guideline, standard, and process for managing risk to help secure information systems (computers and networks). The RMF was developed by the National Institute of Standards and Technology (NIST), and provides a structured process that integrates information security ...
NIST released the Framework for Improving Critical Infrastructure Cybersecurity [8] in February 2014, which "consists of standards, guidelines and practices to promote the protection of critical infrastructure." The NCCoE demonstrates how the framework can be implemented in real-world environments. [9]
Function Specification Parameters Advanced Encryption Standard (AES) Symmetric block cipher for information protection FIPS PUB 197: Use 256-bit keys for all classification levels. Elliptic Curve Diffie-Hellman (ECDH) Key Exchange Asymmetric algorithm for key establishment NIST SP 800-56A: Use Curve P-384 for all classification levels.