As a gold standard for cybersecurity in the United States and the foundation for many new standards and regulations starting to emerge today, the National Institute of Standards and Technology’s (NIST CSF) Cybersecurity Framework is more crucial than ever. Developed as a public and private sector collaboration led by NIST under a presidential executive order to improve critical infrastructure cybersecurity, the NIST Cybersecurity Framework core functions soon scaled beyond high-level energy and critical infrastructure - its outcomes-based approach allowed it to apply to almost any sector and any business size. This framework profilecomprises the Framework Core, Profiles, and NIST Implementation Tiers. Here, we’ll dive into the Framework Core and the five core functions: Identify, Protect, Detect, Respond, and Recover. NIST defines the framework core on its official website as a set of cybersecurity activities, desired outcomes, and applicable informative reference standards across critical infrastructure sectors. The Core presents industry standards, guidelines, and practices that allow communication of cybersecurity activities and mission objectives across the organization from the executive level to the implementation/operations at a high level. The NIST CSF categories, or core functions, contribute to building a solid business foundation and help identify cybersecurity legal and regulatory requirements. Keep reading for a NIST Cybersecurity Framework summary and guide. The first function of the framework, NIST, defines the Identify function as calling on the need to "develop the organizational understanding to manage cybersecurity risk to systems, assets, data, and capabilities.” The focus is on the business and how it relates to cybersecurity risk, especially considering the resources at hand. The outcome Categories associated with this function, for example, are: The NIST Identify function lays the groundwork for your organization's cybersecurity actions. Determining what exists, what risks are associated with those environments, and how they relate to your business goals is crucial to success with the Framework. Successful implementation of the Identify function leads organizations to grasp all assets and environments apart of the enterprise, define the current and desired states of controls to protect those assets and plan to go from current to desired states of security. The result is a clearly defined state of an organization’s cybersecurity posture articulated to technical and business-side stakeholders. Overall, NIST states that the framework's key functions aid an organization in expressing its cybersecurity risk management by organizing information, sharing sensitive information, enabling cybersecurity risk management decisions, addressing threats, and improving by learning from previous activities. The Framework Core's Protect function is essential because it aims to develop and implement appropriate safeguards to ensure critical infrastructure services delivery. The Protect Function supports the ability to limit or contain the impact of a potential cybersecurity event. According to NIST, examples of outcome Categories within this Function include Identity Management and Access Control, Awareness and Training, Data Security, Information Security Protection Processes and Procedures, Maintenance, and Protective Technology. Where Identify focuses primarily on baselining and monitoring, Protect is when the Framework becomes more proactive. The Protect function covers categories such as access control, awareness, and training. The manifestation of these categories and the Protect function as a whole is seen in two- and multi-factor authentication practices to control access to assets and environments and employee training to reduce the risk of accidents and socially engineered breaches. With breaches becoming increasingly common, employing proper protocols and policies to reduce a breach’s risk is especially crucial. The framework’s Protect function is the guide and dictates the necessary outcomes to achieve that goal. The Detect function requires the development and implementation of the appropriate activities to recognize the occurrence of a cybersecurity event. "The Detect function enables the timely discovery of cybersecurity events. Examples of outcome Categories within this Function include Anomalies and Events, Security Continuous Monitoring, and Detection Processes." The Framework Core's detection function is a critical step to a robust cyber program. The faster a cyber event is detected, the faster the repercussions can be mitigated. Examples of how to accomplish steps towards a specific Detect function: Detecting a breach or event can be life or death for your business, making the Detect function of the Cybersecurity Framework critical to both security and business success. Following these standards and best practices and implementing these solutions will help you scale your program and mitigate cybersecurity risk. NIST defines the Respond function as "Develop and implement appropriate activities to take action regarding a detected cybersecurity incident.” "The Respond Function supports the ability to contain the impact of a potential cybersecurity incident. Examples of outcome Categories within this Function include Response Planning, Communications, Analysis, Mitigation, and Improvements.". The Respond function employs response planning, analysis, and mitigation activities to ensure that the cybersecurity program is continuously improving. Starting with an incident response plan is a vital first step to adopting the Respond function - ensuring compliance with necessary reporting requirements encrypted and transmitted securely for a given location and industry. An excellent next step is a mitigation plan - what steps will your team take to remediate identified risks to your program and organization? The Framework Core then identifies underlying key categories and subcategories for each function and matches them with examples of Informative References such as existing standards, guidelines, and practices for each subcategory (NIST). According to the NIST framework, Recover is defined as the need to "develop and implement the appropriate activities to maintain plans for resilience and restore any impaired capabilities or services due to a cybersecurity event. The Recover Function supports timely recovery to normal operations to reduce the impact of a cybersecurity event. Outcomes for this Framework's Core function include Recovery Planning, Improvements, and Communications. NIST CSF Recover includes these areas: The Recover function is essential not only in the eyes of the business and security team but also in that of customers and the market. Swift recovery with grace and tactfulness puts businesses in better positions internally and externally than otherwise. Aligning a recovery plan will help ensure that, if a breach occurs, the company can stay on track to achieve the necessary goals and objectives and distill important lessons learned. The NIST CSF has been updated since this article was published. NIST CSF 2.0 includes updates to the core functions, including the 'Govern' function, improved information references for implementation, and a renewed emphasis on supply chain risk management. Cybersecurity based on the NIST Cybersecurity Framework can be a challenge. Regardless of how challenging it could be, it will be worthwhile. Given that the Framework is based on outcomes rather than specific controls, it allows organizations to build from a strong foundation and supplement to achieve compliance with new regulations as they emerge. The core functions are to identify, protect, detect, respond, and recover and aid organizations in their effort to spot, manage, and counter cybersecurity events promptly. The NIST control framework will help empower continuous control monitoring (CCM) and support CISOs in reporting cybersecurity to the Board. CyberStrong has unmatched access to NIST Cybersecurity Framework mappings and is customizable to controls you define. Contact us to learn more about CyberStrong and how we can empower your alignment with gold-standard cybersecurity risk management frameworks.NIST Cybersecurity Framework (CSF)
NIST CSF Functions
NIST CSF: Identify
NIST CSF: Protect
NIST CSF: Detect
NIST CSF: Respond
NIST CSF: Recover
Implementing the NIST Framework Core
NIST CSF Compliance
NIST Cybersecurity Framework (CSF) Core Explained (2024)
Table of Contents
NIST Cybersecurity Framework (CSF)
NIST CSF Functions
NIST CSF: Identify
NIST CSF: Protect
NIST CSF: Detect
NIST CSF: Respond
NIST CSF: Recover
Implementing the NIST Framework Core
NIST CSF Compliance
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