Network Security Policy

Document control

Field	Value
Document status	Active policy document
Owner	Security / Operations
Approver	Management
Review frequency	Annual or on material change
Classification	Customer-shareable

Purpose

Protect networks and internet-facing systems used for company and customer workloads.

Network segmentation

Environments should be separated by purpose and sensitivity, such as production, staging, and development. Sensitive systems should be isolated from public access unless required by business purpose.

Perimeter controls

Ingress, proxies, firewalls, security groups, and equivalent controls must restrict exposure to required services and ports. Administrative services must not be publicly unrestricted.

Administrative access

Administrative access must use secure protocols, authorized users, MFA where supported, and restricted source access where feasible. Direct access should be logged and reviewed.

Encryption

Traffic to and from customer-facing systems should use TLS 1.2 or higher where supported. Internal service encryption should be considered based on data sensitivity and architecture.

Firewall review

Firewall and network rules should have owner, purpose, approval, and review cadence. Unused or overly broad rules should be removed.

Evidence to maintain

Network architecture diagram, firewall/security rule export, ingress configuration, TLS configuration, access review records, and change approvals.