1 · Purpose
This policy establishes the requirements for network security policy within the CAO-400 Cybersecurity. It gives effect, in a single harmonised instrument, to the control objectives upon which recognised standards converge for this area.
2 · Scope
This policy applies to all information, systems, services, personnel and third parties within the scope of the management system.
3 · Policy statements
3.x · CAO-420 Policy Controls
The organisation shall establish, implement and maintain a coherent and effective approach to network security, giving effect to the organisational control objectives set out below.
3.1 · CAO-421 Network Security Management
The organisation shall establish, implement and maintain effective Network Security Management, giving effect to the organisational controls set out below.
3.1.x · CAO-421 Organisational Controls
Essential taster — a preview of the Professional depth for this high-density control area.
3.2 · CAO-422 Network Segmentation
The organisation shall establish, implement and maintain effective Network Segmentation, giving effect to the organisational controls set out below.
3.2.x · CAO-422 Organisational Controls
3.3 · CAO-423 Web and Content Filtering
The organisation shall establish, implement and maintain effective Web and Content Filtering, giving effect to the organisational controls set out below.
3.3.x · CAO-423 Organisational Controls
3.4 · CAO-424 Cloud Network Security
The organisation shall establish, implement and maintain effective Cloud Network Security, giving effect to the organisational controls set out below.
3.4.x · CAO-424 Organisational Controls
Essential taster — a preview of the Professional depth for this high-density control area.
3.5 · CAO-425 Infrastructure Resilience and Availability
The organisation shall establish, implement and maintain effective Infrastructure Resilience and Availability, giving effect to the organisational controls set out below.
3.5.x · CAO-425 Organisational Controls
4 · Roles & responsibilities
- Governing body — approves this policy and oversees its effectiveness.
- Executive management — allocates resources and assigns control ownership.
- Control owners — implement, operate and evidence the controls in their area.
- All personnel & third parties — comply with this policy within their role.
5 · Compliance, monitoring & review
Compliance with this policy is mandatory. This policy is reviewed at least annually, or upon significant change to the threat, regulatory or technological environment. Exceptions require documented risk acceptance by the accountable owner.