Security Consulting for Mission-Critical Environments

Securing Missions and Protecting Those Who Serve.

ARX Security LLC provides cybersecurity, industrial security, and physical security services for regulated mission-critical environments. Our work is grounded in systems engineering, RMF-aligned execution, and practical zero-trust design.

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What We Do

Four core services engineered for regulated, mission-critical environments.

One integrated risk story across cyber, facilities, and program security—mapped to controls and backed by evidence.

Cybersecurity Services

Cybersecurity & Compliance (RMF/NIST)

RMF support and execution including control inheritance mapping, authorization boundary definition, control implementation planning, SSP/POA&M development, and evidence packages built to withstand assessor scrutiny and accelerate authorization readiness.

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Physical Security

Physical Security

Facility and operations assessments, access control and key management review, policy/post order/SOP alignment, and prioritized risk-based recommendations that improve protection without disrupting operations.

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Security Consulting

Industrial Security / AFSO Support

AFSO support for NISPOM-aligned compliance readiness, program security documentation, training records, and inspection-preparation support—practical, defensible, and audit-ready.

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Training & Development

Training

Role-based security training and tabletop exercises tailored to your environment and compliance drivers, including incident response scenarios, insider threat exercises, and physical breach response walkthroughs.

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Why Choose ARX Security

ARX Security LLC supports mission-critical organizations with security work that holds up under scrutiny. We deliver cybersecurity outcomes designed for regulated environments where evidence matters, timelines are real, and failures are expensive—while ensuring physical security decisions align to the same risk picture.

Cybersecurity built for assessment and authorization

RMF-aligned execution, control inheritance mapping, authorization boundary definition, and evidence packages that stand up to auditor and assessor scrutiny

Engineering-grade outputs

Risk-ranked findings, remediation roadmaps, and reusable artifacts (SSP/POA&M supporting materials) that reduce rework and accelerate readiness

Clear evidence mapping

Traceable linkage from requirements to implemented controls to artifacts—so control narratives and proof stay coherent over time

Operationally practical zero trust

Architecture and implementation guidance that improves security posture without breaking mission workflows

Physical security aligned to cyber risk

Facility assessments, access control/key management review, post orders/SOP alignment, and incident response playbooks for physical breach scenarios