Operational Security (OpSec)

Securing the Human, Physical, and Procedural Layers of Infrastructure

Cybersecurity doesn’t begin and end with firewalls and patch management. In critical infrastructure environments, the people, processes, and physical interfaces that surround technology systems are just as important—and just as vulnerable.

InfraShield’s Operational Security (OpSec) services are built to address these overlooked dimensions of security. From field protocols and portable device usage to insider risk, supply chain controls, and physical perimeter hardening, we help operators secure their operations from the inside out.

What Is Operational Security?

Operational Security—or OpSec—is the practice of protecting sensitive processes, behaviors, and physical systems from being exploited by adversaries. In industrial and critical infrastructure environments, this means safeguarding:

How staff access and interact with OT systems

What procedural gaps or habits could expose vulnerabilities

How physical and digital access is provisioned, monitored, and revoked

What tools, devices, and workflows introduce unintended risk

InfraShield applies a cyber-physical lens to operational risk—protecting the real-world workflows that adversaries can use to breach, persist, or evade your defenses.

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What’s Included in an Operational Security Engagement?

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We tailor our OpSec services to your industry, facility type, regulatory environment, and workforce structure. Our programs are especially suited to OT/ICS environments, including nuclear, energy, transportation, water, and healthcare sectors.

Governance & Strategy (Tier 1):

  • Cyber risk posture assessments and maturity modeling (aligned to NIST CSF, ISA/ IEC 62443, or custom frameworks)
  • Board and leadership-level reporting structure for cyber risk transparency
  • Development and revision of cybersecurity policy, program charters, and strategic planning artifacts
  • Mapping of organizational objectives to technical and procedural controls

Mission & Business Process Integration (Tier 2):

  • Control family implementation across OT/ ICS environments
  • Capital planning guidance to embed cybersecurity in lifecycle procurement and upgrades
  • Process alignment for access control, change management, and supply chain risk
  • Support for Corrective Action Programs (CAP), issue tracking, and documentation workflows

System-Level Controls & Assessments (Tier 3):

  • Technical control audits, CDA assessments, and configuration reviews
  • Artifact and implementation traceability (e.g., linking CSP/ NEI 08-09 to plant procedures)
  • Integration with monitoring tools (e.g., SIEM, NIDS, vTraq™) for operational feedback loops
  • System walkdowns and evidence collection for inspection or audit readiness

InfraShield’s Core Capabilities

Our Risk & Compliance services draw on cross-functional expertise in cybersecurity, regulation, and field engineering—ensuring every decision can be traced, justified, and defended.

Core Capabilities Include:

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Core Capabilities

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Physical & Procedural Security Assessments

  • Review of physical access points, badging systems, and visitor controls
  • Evaluation of existing SOPs for USB/media handling, maintenance, and remote access
  • Walkdowns to assess in-field adherence to physical security protocols
  • Identification of “shadow workflows” that bypass formal policy

Insider Risk & Personnel Security

  • Role-based access review (least privilege, excessive entitlements, dual roles)
  • Insider threat modeling and behavior-based risk indicators
  • Access and offboarding procedure analysis
  • Third-party and contractor access governance

Device and Maintenance Security

  • PEEPS™ enforcement
  • Review of diagnostic tool usage, USB controls, and temporary laptop access
  • Assessment of how tools are updated, managed, and tracked across environments

Supply Chain & Remote Access Control

  • Remote vendor access procedure review
  • Risk evaluation of connected maintenance and monitoring systems
  • Supply chain OpSec review (e.g., integrations, software provenance, external dependencies)

Policy, Training & Cultural Integration

  • Operational security awareness training
  • Simulation of OpSec failure scenarios during tabletop exercises
  • Integration of OpSec into IR plans, CAP, and audit readiness processes

Why Operational Security Matters

OpSec blind spots are often exploited without ever triggering a digital alert:

A contractor connects a diagnostic laptop infected with malware

A staff member bypasses controls using unauthorized USB drives

A password reset is issued without validating physical identity

A legacy access badge is never revoked after role reassignment

InfraShield helps you close these gaps—before they become attack vectors or audit findings.

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What Comes Next?

Operational security is not a static checklist—it’s a dynamic function that evolves with people, processes, and technologies. InfraShield helps you embed OpSec into everyday decisions and mission-critical workflows.

Ready to Strengthen Your Operational Security

Let’s work together to harden your procedures, devices, and controls—without disrupting your mission.

Request an OpSec Assessment or contact our team for any questions or concerns.

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