Network Segmentation & Policy-as-Code Services

The Cloud Has No Perimeter, Segmentation Is the Control Plane

In cloud and hybrid environments, the network is flat by default. Without intentional segmentation, a single vulnerability in one workload can expose everything else. Lateral movement happens fast and without clear boundaries; it’s hard to contain.

Cloud-native platforms offer segmentation tools, but they vary by provider and are rarely aligned to Zero Trust principles out of the box. That’s where we come in.

We design and implement network segmentation strategies that are:

- Rooted in Zero Trust: every connection is explicitly defined and verified
- Cloud-native: built using the constructs of AWS, Azure, GCP, and Kubernetes
- Operationalized: automated with Policy-as-Code for consistent governance at scale

We make segmentation practical, portable, and enforceable, so your network stops assuming trust and starts enforcing policy.

We help you implement a segmentation strategy that’s:

- Aligned to Zero Trust principles
- Flexible across clouds and data centers
- Automated, auditable, and scalable

IVI’s Cloud Segmentation Service

Phase 1: Segmentation Planning & Risk Mapping

We start by mapping your business domains, compliance zones, and high-value assets to understand where segmentation is required and why.

Result: A segmentation blueprint aligned to business risk and operational realities. Prevents overengineering and ensures security ROI.

Phase 2: Macro- & Micro-Segmentation Architecture

We design and implement segmentation boundaries across environments, from isolated VPCs and subnets to workload-level policies for containers and VMs.

Result: Containment of threats and controlled east-west traffic. Enables enforcement of least-privilege access between apps and systems

Phase 3: Policy-as-Code Design & Implementation

We define your access, tagging, and compliance policies as code using tools like Rego (OPA) or YAML, integrated directly into CI/CD pipelines.

Result: Automated, version-controlled enforcement of security standards. Policy violations are blocked before they ever reach production.

Phase 4: Continuous Governance & Audit Readiness

We build the automation, reporting, and remediation workflows to keep your policy posture current and auditable at all times.

Result: Reduced manual overhead, faster audits, and continuous compliance enforcement, even across dynamic environments.

Platform-Specific Implementation Highlights

AWS:

VPC peering and Transit Gateway segmentation
Security Groups and NACLs for macro boundaries
IAM, SCPs, and Rego/Opa for fine-grained access control
S3 bucket and SG misconfiguration prevention with PaC

Azure:

VNET-to-VNET segmentation using NSGs and UDRs
Azure Policy for governance-as-code
Microsegmentation for AKS with Calico/OPA

GCP:

VPC Service Controls and IAM Policies
Forseti or Config Validator for Policy-as-Code
gVisor/Kubernetes-based microsegmentation models

Kubernetes:

Workload-aware microsegmentation with Calico
OPA Gatekeeper for dynamic policy injection
Runtime enforcement of pod-level firewalling

Key Design Considerations

Granularity vs. Manageability:

Microsegmentation enables least-privilege, but without automation, it creates operational friction. We bridge the gap with PaC.

Compliance vs. Agility:

Security policies must move at the speed of development. CI/CD-native policy enforcement ensures both.

Cloud-Native vs. Unified Governance:

We help unify diverse controls across cloud-native constructs into a single policy model — without breaking cloud-native functionality.

FAQs: Cloud Segmentation & Zero Trust Services

What’s the difference between macro- and micro-segmentation?

Macro-segmentation divides environments into isolated zones (like Dev vs. Prod). Micro-segmentation secures individual workloads, applying policies at the app level for least-privilege access.

Why is Policy-as-Code important in cloud environments?

Cloud and container environments change rapidly. PaC ensures your policies are enforced automatically and consistently, preventing misconfigurations before they reach production.

Do I need Kubernetes or containers to implement PaC?

No. While PaC is popular in container environments, it applies across infrastructure, from VM firewalls to IAM roles. We tailor your PaC implementation to your stack.

How is PaC enforced?

Policies are written in code (like YAML or Rego), version-controlled in Git, and evaluated during CI/CD. Violations are flagged or blocked before deployment.

Can this be integrated with my existing security tooling?

Yes. Our approach integrates with native cloud security tools (AWS Config, Azure Policy) as well as third-party solutions (OPA, Prisma, Dome9, etc.) for enforcement and monitoring.

How does IVI support the full lifecycle of CloudEOS adoption?

We guide you through assessment, design, deployment, and automation, from overlay architecture and routing policy design to IaC implementation and observability integration. Post-deployment, we offer ongoing support and governance models to ensure success at scale.

Experience the Difference: Proven Expertise, Tangible Results

Mastering complexity is our specialty. With decades of hands-on experience, our team excels in executing intricate cloud integrations, critical contact center migrations, and future-focused network transformations, successfully delivering hundreds of projects for enterprise clients across diverse industries.

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Segment with Precision. Secure by Design.

We architect Zero Trust-aligned segmentation strategies that limit lateral movement, reduce blast radius, and automate policy enforcement with Policy-as-Code across cloud, hybrid, and containerized environments.