ISO/IEC 27001:2022 Annex A: Network Controls (A.8.20–A.8.23)
Compliance architecture mapping for ISO 27001:2022 controls A.8.20 (Network Security), A.8.21 (Security of Network Services), and A.8.22 (Segregation).
Regulatory Context & Scope
ISO 27001 Annex A dictates technical measures to secure network infrastructure and maintain operational data segregation.
Key Required Network Controls
Control A.8.20: Network Security - Managing and controlling network perimeters to protect information systems.
Control A.8.21: Security of Network Services - Establishing service level parameters and authentication controls.
Control A.8.22: Segregation in Networks - Dividing internal networks into distinct physical and logical security perimeters.
Control A.8.23: Web Filtering - Restricting access to external websites to reduce exposure to malicious content.
Technical Implementation Checklist
Position 4CGuard at external ingress/egress boundaries to enforce ISO 27001:2022 access policies.
Isolate regulated database enclaves and sensitive endpoints into dedicated VLANs.
Inspect application payloads for threats while applying compliance bypasses for privacy.
Stream CEF/Syslog telemetry to SIEM to maintain 100% verifiable ISO 27001:2022 compliance records.
ISO 27001:2022 - Compliance FAQs
Common auditor, technical, and implementation questions.
4CGuard automates rule verification, enforces zero-trust access, encrypts data in transit, and exports audit logs mapped directly to ISO 27001:2022 controls.
Evaluate 4CGuard on your network topology
Schedule an architectural walkthrough with a network security engineer. Review Layer 7 inspection rules, encrypted payload decapsulation, and Active Directory policy integration.