A.8.20 Networks security | ISO 27001 Control

Purpose

To ensure the protection of information in networks and supporting information processing facilities.

Implementation Guidance

Implement network segmentation

Use firewalls to control network traffic

Configure network devices securely

Monitor network traffic for anomalies

Document network architecture and security controls

Recommended Tools

Cloudflare

Global CDN with WAF and DDoS protection. Essential security layer for web applications.

AWS WAF

Web application firewall from AWS. Integrates seamlessly with CloudFront and ALB.

Tailscale

Zero-config VPN built on WireGuard. Modern and secure remote access without complexity.

ZeroTier

ISO 27001 Services from the Directory

These providers can help you implement A.8.20 and achieve ISO 27001 certification.

Advisera

Provider of ISO 27001 documentation, training, and consultancy services to help businesses achieve compliance.

Anecdotes

Enterprise agentic GRC platform with 230+ integrations and 40+ pre-mapped frameworks for Fortune 500 compliance programs.

Arrow Cyber Advisors

Arrow Cyber Advisors enables organizations to build measurable cybersecurity maturity and resilience. We specialize in governance, risk and compliance advisory, providing clear security direction, maturity benchmarking, and execution support tailored to regulated and high-risk environments.