Defensive Architecture & Security Operations

Securing Critical Systems by Design

In today’s threat landscape, security is not just a set of tools—it’s an engineered approach. InfraShield’s Defensive Architecture and Security Operations solutions help critical infrastructure operators build resilient cyber-physical systems from the ground up.

Whether modernizing a power plant’s OT network or reinforcing a data center’s segmentation strategy, our goal is simple: build security into the architecture so threats don’t stand a chance.

Defense-in-Depth, Designed for the Real World

Effective security architecture goes beyond air gaps and firewalls. It requires deliberate zoning, hardened control points, traffic inspection, and integrated monitoring across both IT and OT networks. InfraShield designs and deploys layered defenses that address vulnerabilities at every level—from endpoint hardening to network segmentation to security operations center (SOC) integration.

We build with the assumption of compromise—and engineer for containment, detection, and recovery.

Visibility across enterprise, DMZ, and field layers

Control of traffic, users, and asset interdependencies

Resilience against both targeted attacks and internal failures

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Architecture Design & Validation:

  • OT/IT segmentation and secure boundary definition
  • DMZ and jump server architecture
  • Secure communications paths between SCADA, PLC, HMI, and historian layers
  • Application-layer inspection and protocol-aware zoning (aligned to ISA/IEC 62443-3-3)

Endpoint & Network Hardening:

  • Server/workstation OS configuration baselines
  • Device-level access control and role enforcement
  • Portable media protection via Go to PEEPS™
  • Logging, alerting, and integrity validation for critical assets

Security Operations & Monitoring Integration:

  • NIDS design and deployment
  • SIEM integration with OT-aware logging and correlation
  • SOC playbook development and alert response tuning
  • Anomaly and rogue device detection at the ICS edge

Programmatic Risk Management:

  • Architectural alignment to NIST CSF, 800-82, and ISA/IEC 62443
  • Lifecycle maturity scoring using the ICISI Cyber-Physical Maturity Model
  • Security operations planning for NRC/NEI inspection readiness
  • Playbook development for incident response and continuity of operations

Built for Complexity. Designed for Continuity.

From air-gapped legacy systems to modern converged IT/OT networks, InfraShield brings deep technical and regulatory insight to every engagement. Our architecture and security operations teams have supported high-consequence systems where even minor disruptions can carry major safety, compliance, or reputational consequences.

We’ve helped organizations:

Redesign
Integrate
Build
Tune

Redesign Segmented Zones

Redesign flat ICS networks into segmented, policy-enforced zones

Integrate Threat Detection

Integrate threat detection into OT environments without performance impact

Build SOC Workflows

Build SOC workflows that differentiate between operational anomalies and real attacks

Tune Inspection Readiness

Tune infrastructure to be inspection-ready without overengineering

Why
InfraShield

What Comes Next?

Security architecture is not a blueprint—it’s a living strategy. InfraShield helps you build, operate, and evolve that strategy over time, so your defenses stay one step ahead of the threat.

Ready to Strengthen Your Defenses?

Let’s talk about how InfraShield can help you design secure, resilient systems and operate them with confidence—now and into the future.

Request a Security Architecture Consultation or contact our team for any questions or concerns.

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