ISO/IEC 27005:2018
Information technology — Security techniques — Information security risk management
This document provides guidelines for information security risk management.
This document supports the general concepts specified in ISO/IEC 27001 and is designed to assist the satisfactory implementation of information security based on a risk management approach.
Knowledge of the concepts, models, processes and terminologies described in ISO/IEC 27001 and ISO/IEC 27002 is important for a complete understanding of this document.
This document is applicable to all types of organizations (e.g. commercial enterprises, government agencies, non-profit organizations) which intend to manage risks that can compromise the organization's information security.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Structure of this document
5 Background
6 Overview of the information security risk management process
7 Context establishment
7.1 General considerations
7.2 Basic criteria
7.2.1 Risk management approach
7.2.2 Risk evaluation criteria
7.2.3 Impact criteria
7.2.4 Risk acceptance criteria
7.3 Scope and boundaries
7.4 Organization for information security risk management
8 Information security risk assessment
8.1 General description of information security risk assessment
8.2 Risk identification
8.2.1 Introduction to risk identification
8.2.2 Identification of assets
8.2.3 Identification of threats
8.2.4 Identification of existing controls
8.2.5 Identification of vulnerabilities
8.2.6 Identification of consequences
8.3 Risk analysis
8.3.1 Risk analysis methodologies
8.3.2 Assessment of consequences
8.3.3 Assessment of incident likelihood
8.3.4 Level of risk determination
8.4 Risk evaluation
9 Information security risk treatment
9.1 General description of risk treatment
9.2 Risk modification
9.3 Risk retention
9.4 Risk avoidance
9.5 Risk sharing
10 Information security risk acceptance
11 Information security risk communication and consultation
12 Information security risk monitoring and review
12.1 Monitoring and review of risk factors
12.2 Risk management monitoring, review and improvement
Annex A (informative) Defining the scope and boundaries of the information security risk management process
Annex B (informative) Identification and valuation of assets and impact assessment
Annex C (informative) Examples of typical threats
Annex D (informative) Vulnerabilities and methods for vulnerability assessment
Annex E (informative) Information security risk assessment approaches
Annex F (informative) Constraints for risk modification
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Structure of this document
5 Background
6 Overview of the information security risk management process
7 Context establishment
7.1 General considerations
7.2 Basic criteria
7.2.1 Risk management approach
7.2.2 Risk evaluation criteria
7.2.3 Impact criteria
7.2.4 Risk acceptance criteria
7.3 Scope and boundaries
7.4 Organization for information security risk management
8 Information security risk assessment
8.1 General description of information security risk assessment
8.2 Risk identification
8.2.1 Introduction to risk identification
8.2.2 Identification of assets
8.2.3 Identification of threats
8.2.4 Identification of existing controls
8.2.5 Identification of vulnerabilities
8.2.6 Identification of consequences
8.3 Risk analysis
8.3.1 Risk analysis methodologies
8.3.2 Assessment of consequences
8.3.3 Assessment of incident likelihood
8.3.4 Level of risk determination
8.4 Risk evaluation
9 Information security risk treatment
9.1 General description of risk treatment
9.2 Risk modification
9.3 Risk retention
9.4 Risk avoidance
9.5 Risk sharing
10 Information security risk acceptance
11 Information security risk communication and consultation
12 Information security risk monitoring and review
12.1 Monitoring and review of risk factors
12.2 Risk management monitoring, review and improvement
Annex A (informative) Defining the scope and boundaries of the information security risk management process
Annex B (informative) Identification and valuation of assets and impact assessment
Annex C (informative) Examples of typical threats
Annex D (informative) Vulnerabilities and methods for vulnerability assessment
Annex E (informative) Information security risk assessment approaches
Annex F (informative) Constraints for risk modification
Bibliography