top of page

ISO/IEC 27035-4

ISO/IEC 27035-4:2024 — Information technology — Information security incident management — Part 4: Coordination

(first edition)

Abstract

ISO/IEC 27035 part 4 “provides guidelines for multiple organizations handling information security incidents in a coordinated manner. It also addresses the impacts of external cooperation on the internal incident management of an individual organization and provides guidelines for an individual organization to adapt to the coordination process. Furthermore, it provides guidelines for the coordination team, if it exists, to perform coordination activities supporting the cross-organization incident response. The principles given in [ISO/IEC 27035-4] are generic and are intended to be applicable to multiple organizations to work together to handle information security incidents, regardless of their types, sizes or nature. Organizations can adjust the guidance given in [ISO/IEC 27035-4] according to their type, sizes and nature of business in relation to the information security risk situation. [ISO/IEC 27035-4] is also applicable to an individual organization that participates in partner relationships.” 


[Source: ISO/IEC 27035-4:2024]

Introduction

Whereas managing routine information security incidents typically involves several departments or teams within an organisation, exceptional/major incidents (such as botnet or phishing attacks) require collaboration and coordination between the Incident Response Teams of several organisations, often in different countries. They may be affected or involved in various ways e.g. Internet and cloud service providers, plus law enforcement, plus the targeted organisation/s.

Scope

Part 4 is about coordinating responses to major incidents with other implicated, involved or support organisations, such as cloud and network suppliers.

Structure

Main sections:

  • 4: Overview

  • 5: Coordinated incident management process

  • 6: Guidelines for key activities of coordinated incident management

  • Annex A: Examples of information security incident management coordination

Status

The current first edition was published in 2024.

Commentary

Part 4 "provides guidelines for multiple organizations handling information security incidents in a coordinated manner. It also addresses the impacts of external cooperation on the internal incident management of an individual organization and provides guidelines for an individual organization to adapt to the coordination process. Furthermore, it provides guidelines for the coordination team, if it exists, to perform coordination activities supporting the cross-organization incident response.


The principles given in this document are generic and are intended to be applicable to multiple organizations to work together to handle information security incidents, regardless of their types, sizes or nature. Organizations can adjust the guidance given in this document according to their type, sizes and nature of business in relation to the information security risk situation. This document is also applicable to an individual organization that participates in partner relationships."

This page last updated:

2 November 2025

© 2025 IsecT Limited 

 

  • Link
  • LinkedIn
bottom of page