ISO/IEC 27035-2:2023 情報技術 — 情報セキュリティ インシデント管理 — Part 2: インシデント対応を計画および準備するためのガイドライン | ページ 2

3.1 用語と定義

このドキュメントの目的のために、ISO/IEC 27000 および ISO/IEC 27035-1 に記載されている用語と定義が適用されます。

ISO および IEC は、次のアドレスで標準化に使用する用語データベースを維持しています。

Foreword

ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives or www.iec.ch/members_experts/refdocs ).

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents ) or the IEC list of patent declarations received (see https://patents.iec.ch ).

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO's adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www.iso.org/iso/foreword.html . In the IEC, see www.iec.ch/understanding-standards .

This document was prepared by Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 27, Information security, cybersecurity and privacy protection.

This second edition cancels and replaces the first edition (ISO/IEC 27035-2:2016), which has been technically revised.

The main changes are as follows:

• the title has been modified;
• new roles including incident management team and incident coordinator and their responsibilities have been added;
• content related to vulnerability management has been modified;
• content on a recommended process for organizations has been added in 6.7;
• Clause 7 structure has been reorganized;
• C.3 has been replaced by a single paragraph;
• bibliography has been updated.

A list of all parts in the ISO/IEC 27035 series can be found on the ISO and IEC websites.

Introduction

This document focuses on information security incident management which is identified in ISO/IEC 27000 as one of the critical success factors for the information security management system.

There can be a large gap between an organization’s plan for an incident and an organization's preparedness for an incident. Therefore, this document addresses the development of procedures to increase the confidence of an organization’s actual readiness to respond to an information security incident. This is achieved by addressing the policies and plans associated with incident management, as well as the process for establishing the incident response team and improving its performance over time by adopting lessons learned and by evaluation.

1 Scope

This document provides guidelines to plan and prepare for incident response and to learn lessons from incident response. The guidelines are based on the “plan and prepare” and “learn lessons” phases of the information security incident management phases model presented in ISO/IEC 27035-1:2023, 5.2 and 5.6.

The major points within the “plan and prepare” phase include:

• information security incident management policy and commitment of top management;
• information security policies, including those relating to risk management, updated at both organizational level and system, service and network levels;
• information security incident management plan;
• Incident Management Team (IMT) establishment;
• establishing relationships and connections with internal and external organizations;
• technical and other support (including organizational and operational support);
• information security incident management awareness briefings and training.

The “learn lessons” phase includes:

• identifying areas for improvement;
• identifying and making necessary improvements;
• Incident Response Team (IRT) evaluation.

The guidance given in this document is generic and intended to be applicable to all organizations, regardless of type, size or nature. Organizations can adjust the guidance given in this document according to their type, size and nature of business in relation to the information security risk situation. This document is also applicable to external organizations providing information security incident management services.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

3 Terms, definitions and abbreviated terms

3.2 Abbreviated terms

Bibliography