Is communications security required by Annex A?

In the context of ISO 27001, Annex A does not mandate specific security controls to be implemented universally by all organizations. Instead, it provides a list of controls that organizations can choose from based on their individual risk assessments and the specific context of their operations. While communications security is an important aspect of information security management, it is not explicitly required for every organization.

Annex A allows organizations to tailor their security measures to address the unique risks they face, meaning that while many organizations may opt to include communications security as part of their risk management strategy, it is not a blanket requirement. This flexibility ensures that organizations can allocate their resources and efforts where they are most needed, which highlights the adaptable and risk-based approach of the ISO 27001 standard.