ISO 27001:2022 Annex A Control 5.30

What Is The Purpose of ISO 27001:2022 Annex A 5.30?

ISO 27001 Annex A Control 5.30 acknowledges the important role ICT platforms and services play in maintaining business continuity during disruption or an event of critical significance.

An organisation’s recovery time objective (RTO) and business impact analysis (BIA) are defined in Annex Control 5.30, which discusses how ICT services interact with those metrics and supporting controls.

Before, during, and after an interruption in business, the goal is to maintain information integrity and availability.

General Guidance on Annex A 5.30

To create processes and procedures under Annex A Control 5.30, a thorough BIA must be conducted to determine how an organisation should respond when operational disruption occurs.

A business impact analysis aims to establish how disruption of any kind could affect business continuity, regardless of the types of impacts and organisational variables involved.

To formulate an agreed-upon RTO that sets clear goals for the return to normal operation, organisations should take into account two key variables:

• An assessment of the disruption’s magnitude.
• The nature of the disruption.

Organisations should be able to identify the precise ICT services and functions required for recovery and their performance and capacity requirements within their BIA.

It is essential for organisations to conduct a risk assessment that evaluates their ICT systems and forms the foundation for an ICT continuity strategy (or strategies) that can be launched prior to, during, and after a disruption.

After a strategy has been agreed on, it is necessary to put in place specific processes to ensure ICT services are resilient and adequate to support critical processes and systems during and after disruptions.

These are the main guidance points within Annex A Control 5.30 regarding ICT continuity plans:

1. To expedite the recovery process from ICT incidents, senior staff members must often make quick decisions regarding information security.
2. Business continuity and RTO adherence require a strong chain of command that includes competent individuals who can make authoritative decisions.
3. To facilitate adequate communication and speed up recovery times, organisational structures must be up-to-date and widely communicated.
4. Regular testing and evaluation and senior management approval are essential components of ICT continuity plans.
5. A test run should be conducted to gauge the effectiveness of the systems, and key metrics, such as response and resolution times, should be measured.
6. The following information should be included in an ICT continuity plan:
• The performance and capacity requirements of any systems or processes used as part of the recovery effort.
• A clear RTO for each ICT service in question and how the organisation intends to restore them.
• For each ICT resource, a recovery point objective (RPO) is defined, and procedures are created to ensure information can be restored.

What Are the Changes From ISO 27001:2013?

There is no precedent for control 5.30 in ISO 27001:2013, it is a new control in ISO 27001:2022.

Table of All ISO 27001:2022 Annex A Controls

In the table below you’ll find more information on each individual ISO 27001:2022 Annex A Control.

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