Basics of NIST Cyber Security Framework
TLDRThis video script delves into the NIST Cybersecurity Framework (CSF), also known as CESF, outlining its purpose in guiding organizations to manage cybersecurity risks effectively. The CSF is structured around five core functions: Identify, Protect, Detect, Respond, and Recover, each with specific categories and subcategories to ensure comprehensive security measures. The script explains the importance of understanding the framework to develop a robust security posture, create target profiles, and perform gap analysis to improve an organization's cybersecurity maturity from reactive to adaptive tiers.
Takeaways
- 📚 The Cyber Security Framework (CSF) provides guidelines, standards, and best practices to manage cybersecurity risks effectively.
- 🛡️ The framework is divided into three main components: Core, Profiles, and Tiers, which help organizations to establish their cybersecurity goals and measure their maturity level.
- 🔑 The Core of the framework consists of five functions: Identify, Protect, Detect, Respond, and Recover, which are essential for an organization's cybersecurity program.
- 📈 The framework categorizes cybersecurity outcomes into 23 categories, further broken down into 108 subcategories, which are essentially security controls.
- 🏢 The 'Identify' function is crucial as it lays the foundation for an organization to recognize and understand its systems, assets, data, and capabilities.
- 🛡️ The 'Protect' function involves developing safeguards to ensure the delivery of critical services and to protect people, devices, and infrastructure.
- 🕵️♂️ 'Detect' is about establishing mechanisms to identify cybersecurity incidents or attacks, including the use of intrusion detection systems.
- 🚨 The 'Respond' function is about having a plan to take immediate action in the event of a detected cybersecurity incident to mitigate the impact.
- 🔄 'Recover' focuses on restoring services impaired by a cybersecurity incident, ensuring the organization can resume normal operations.
- 🎯 Profiles within the framework help organizations understand their current cybersecurity posture and plan future security objectives by selecting relevant subcategories.
- 🔍 Gap analysis is performed by comparing the Target Profile (desired future state) with the Current Profile (current state), guiding the organization to close the gap.
- 🌐 Implementation Tiers indicate the maturity level of an organization's cybersecurity practices, ranging from Partial (Tier 1) to Adaptive (Tier 4).
Q & A
What is the purpose of a Cyber Security Framework (CSF)?
-A Cyber Security Framework (CSF) provides a set of guidelines, standards, and best practices to help organizations manage and mitigate cyber security risks more effectively.
What are the three main components of the NIST Cyber Security Framework (CSF)?
-The three main components of the NIST CSF are the Core, Profiles, and Tiers. The Core consists of five functions, Profiles help organizations understand their current and target security posture, and Tiers indicate the maturity level of an organization's implementation of the framework.
What are the five functions of the Core component in the NIST CSF?
-The five functions of the Core component are Identify, Protect, Detect, Respond, and Recover. These functions guide organizations in achieving their cyber security goals and managing risks.
How many categories and subcategories are there in the NIST CSF?
-There are 23 categories within the five functions, which are further decomposed into 108 subcategories, also known as security controls.
What is the purpose of the 'Identify' function in the NIST CSF?
-The 'Identify' function provides a basis for an organization to understand its systems, people, assets, data, and capabilities, which is essential for managing cyber security risks.
What does the 'Protect' function entail in the NIST CSF?
-The 'Protect' function involves the development and implementation of safeguards to ensure the delivery of critical services by protecting people, devices, and infrastructure from potential threats.
Can you explain the 'Detect' function in the context of the NIST CSF?
-The 'Detect' function is about developing and implementing activities that enable the identification of cyber security events or attacks, such as through intrusion detection systems and security control monitoring.
What actions are associated with the 'Respond' function in the NIST CSF?
-The 'Respond' function involves the development and implementation of activities to take appropriate actions in response to a detected cyber security incident, including mitigation strategies.
What is the objective of the 'Recover' function in the NIST CSF?
-The 'Recover' function aims to restore services that were impaired due to a cyber security incident or attack, ensuring the organization can resume normal operations.
How do organizations use the NIST CSF to develop their security posture?
-Organizations use the NIST CSF to create a Target Profile, which describes the desired future state, and a Current Profile, which describes the present state. They then perform a Gap Analysis to identify the differences and plan steps to move from the current to the target state.
What do the Implementation Tiers in the NIST CSF represent?
-The Implementation Tiers represent the maturity level of an organization's cyber security practices, ranging from Partial (Tier 1) to Adaptive (Tier 4), with each tier indicating a higher level of preparedness and response to cyber security incidents.
Outlines
🔒 Introduction to Cyber Security Frameworks
This paragraph introduces the concept of cyber security frameworks, specifically the NIST Cyber Security Framework (CSF). It explains the necessity of such frameworks for organizations to manage and mitigate cyber security risks. The CSF is broken down into three main components: the Core, Profiles, and Tiers. The Core consists of five functions—Identify, Protect, Detect, Respond, and Recover—which are further divided into categories and subcategories to provide a comprehensive approach to cyber security. The paragraph emphasizes the importance of guidelines and best practices in securing an organization's data, systems, and people against cyber threats.
🚨 Core Functions and Categories of Cyber Security
This section delves deeper into the Core component of the CSF, detailing the five functions that form the basis of an organization's cyber security strategy. Each function is associated with key outcomes that help manage cyber security risks. The Identify function is about recognizing and understanding an organization's systems, assets, and people. The Protect function involves implementing safeguards to ensure the continuity of critical services. Detect is about establishing mechanisms to identify cybersecurity attacks. Respond outlines the need for a plan to take action in the event of a cyber incident. Finally, Recover focuses on restoring services after an attack. The paragraph also discusses how these functions are further divided into 23 categories and 108 subcategories, which are essentially security controls.
📊 Profiles and Gap Analysis in Cyber Security Management
The paragraph discusses the concept of Profiles within the CSF, which help organizations understand their current cyber security posture and plan for future targets. It explains the Target Profile as the desired future state of an organization's cyber security, and the Current Profile as the present state. The process involves selecting appropriate subcategories from the 108 available to form a Profile that suits the organization's nature and needs. The paragraph also introduces Gap Analysis, which is the comparison between the Target and Current Profiles to identify areas for improvement. This leads to planning steps to enhance the organization's cyber security posture.
📈 Implementation Tiers and Maturity Levels
This final paragraph addresses the Tiers component of the CSF, which represents the maturity level of an organization's implementation of cyber security practices. It outlines four tiers: Partial Implementation (Tier 1), Risk-Informed (Tier 2), Repeatable (Tier 3), and Adaptive (Tier 4). Each tier reflects the organization's preparedness and response to cyber attacks, from a reactive stance with little awareness at Tier 1, to a proactive and predictive approach at Tier 4. The paragraph concludes by summarizing the importance of understanding and applying the CSF to enhance an organization's cyber security posture.
Mindmap
Keywords
💡Cyber Security Framework
💡NIST Cyber Security Framework
💡Core
💡Profiles
💡Tiers
💡Identify
💡Protect
💡Detect
💡Respond
💡Recover
💡Gap Analysis
Highlights
Cyber security framework is a set of guidelines, standards, and best practices to manage cyber security risk.
Nest Cyber Security Framework (CESF) is divided into three main components: Core, Profiles, and Tiers.
The Core component consists of five functions: Identify, Protect, Detect, Respond, and Recover.
Each function is further divided into categories, known as cyber security outcomes, totaling 23 categories.
Categories are further decomposed into 108 subcategories, also known as security controls.
The Identify function provides a basis for an organization to identify its systems, people, assets, and capabilities.
The Protect function involves developing and implementing safeguards to ensure the delivery of critical services.
The Detect function focuses on identifying the occurrence of cyber security attacks through appropriate activities.
The Respond function is about taking actions in response to a detected cyber security incident.
The Recover function aims to restore services impaired due to cyber security incidents or attacks.
Profiles help organizations understand their current cyber security posture and plan future security targets.
A Target Profile describes the desired state an organization wants to achieve by looking at categories or functions.
A Current Profile describes the present state of an organization's cyber security posture.
Gap analysis is the comparison between the Target Profile and the Current Profile to identify differences.
Implementation Tiers refer to the maturity level of an organization's cyber security guidelines or recommendations.
Tier 1 (Partial Implementation) indicates a reactive response to cyber attacks with little awareness.
Tier 2 (Risk Informed) shows that organizations have defined procedures and policies but lack complete implementation.
Tier 3 (Repeatable) indicates that organizations have proper procedures and policies defined and implemented, but may lack real-time response.
Tier 4 (Adaptive) shows that the organization has completely adopted a framework and can respond to real-time events and predict issues.
Transcripts
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