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Network & Infrastructure Security Engineering

A network policy is only useful if it matches how traffic and deployments really behave. We review segmentation, access rules, configuration changes and recovery paths, then help fix what the environment allows.

Assessment method

Network paths violate intended segmentation or are poorly documented.

Security-focused architecture and implementation for enterprise or cloud networks where the customer provides authorized access and qualified infrastructure owners. Typical work includes routing and segmentation review, firewall/ACL policy, private connectivity, workload identity, secure IaC and incident diagnostics. Classified network, COMSEC-material custody or government accreditation is not offered or implied.

01

Boundary to inspect

Network paths violate intended segmentation or are poorly documented.

02

Test execution

Map permitted network zones, assets, identity boundaries, connectivity dependencies and owners.

03

Evidence to capture

Network segmentation and trust-zone diagrams scoped to the selected systems.

Scope network security engineering

Test plan

Testing and deliverables

Security testing coverage

  • Map permitted network zones, assets, identity boundaries, connectivity dependencies and owners.
  • Review firewall/ACL, segmentation and private connectivity policy against actual traffic needs.
  • Validate DNS, TLS and application-service network assumptions using approved telemetry.
  • Implement or review versioned IaC, peer approval, policy tests and staged rollout.
  • Build drift alerts, safe deployment checks and rollback procedures.
  • Define incident timeline capture, backup validation and recovery objectives for included services.
  • Coordinate with client network, compliance and change-approval owners on requirements.

Findings and remediation

  • Network segmentation and trust-zone diagrams scoped to the selected systems.
  • Prioritized rule/policy findings and reviewed infrastructure configuration changes.
  • Automated checks or change-review criteria with staged rollback steps.
  • Alert, incident and recovery evidence requirements.
  • Access, operational ownership and residual-risk handoff.

First-party operational work

Engineering in practice

Cloudflare Worker incident and fix

Production incident on this site, including the root cause, changes and checks.

Explore Projects

HOW THE WORK IS DELIVERED

Expertise you can put to work.

Explore how our engineering and security work moves from discovery to implementation, testing and delivery.

01 / Input

Understand your environment

Map permitted network zones, assets, identity boundaries, connectivity dependencies and owners.

02 / Verification

Investigate and implement

Review firewall/ACL, segmentation and private connectivity policy against actual traffic needs.

03 / Output

Deliver practical results

Network segmentation and trust-zone diagrams scoped to the selected systems.

Example deliverable structure

Clear findings. Practical next steps.

01Affected component & scope
02Observed behavior and reproduction
03Impact, preconditions and limits
04Correction, owner and retest
View sample security reports

Our Approach

How we work with your team

Discovery

We review your goals, existing environment and the systems or workflows involved.

Engagement planning

Testing requires written authorization, named targets, allowed techniques and stop conditions. We define the delivery plan and responsibilities together.

Results and handoff

Your team receives the agreed implementation or findings, testing results and a clear next-step plan.

Learn more about our process: Our Approach.

Related Services

Next step

Need infrastructure security improvements?

Share a sanitized network boundary diagram, selected environment, cloud/provider details, change authorization and the current reliability or security problem.