Cyber Risk Assessment - PCI DSS Assessment

NOXMON assesses your environment against PCI DSS v4.0.1, scopes your cardholder data environment, and quantifies the financial exposure tied to every gap. Through RISKMON, our proprietary cyber risk quantification platform, we track evidence and keep your compliance posture monitored 24x7.

Protect Cardholder Data and Prove It

Any organization that stores, processes, or transmits cardholder data is accountable to the Payment Card Industry Data Security Standard. PCI DSS v4.0.1 is the current version of the standard, and it raised expectations around continuous monitoring, targeted risk analyses, and evidence quality. A point-in-time pass no longer reflects how the standard is meant to operate.

NOXMON's assessment begins by precisely defining your cardholder data environment (CDE)—the systems, people, and processes that touch account data, plus everything connected to them. We then evaluate your posture against all twelve requirements and express each gap as quantified financial exposure in RISKMON, so remediation effort flows to the risks that matter most.

Whether you are preparing a Self-Assessment Questionnaire or a full Report on Compliance, our analysts translate the standard into a prioritized roadmap—and the same platform that produces your assessment keeps your CDE monitored continuously afterward.

The 6 Goals and 12 Requirements

PCI DSS v4.0.1 organizes its twelve requirements under six control objectives. NOXMON assesses your environment against each one and maps your evidence in RISKMON.

Build & Maintain a Secure Network

  • Requirement 1. Install and maintain network security controls.
  • Requirement 2. Apply secure configurations to all system components.

Protect Account Data

  • Requirement 3. Protect stored account data.
  • Requirement 4. Protect cardholder data with strong cryptography during transmission over open networks.

Maintain a Vulnerability Management Program

  • Requirement 5. Protect all systems and networks from malicious software.
  • Requirement 6. Develop and maintain secure systems and software.

Implement Strong Access Control

  • Requirement 7. Restrict access to system components and cardholder data by business need to know.
  • Requirement 8. Identify users and authenticate access to system components.
  • Requirement 9. Restrict physical access to cardholder data.

Regularly Monitor & Test Networks

  • Requirement 10. Log and monitor all access to system components and cardholder data.
  • Requirement 11. Test the security of systems and networks regularly.

Maintain an Information Security Policy

  • Requirement 12. Support information security with organizational policies and programs.

Scoping & Segmentation

Scope is the single biggest driver of PCI DSS cost and effort. Every system that stores, processes, or transmits account data—and every system connected to it—falls in scope. Network segmentation is the standard's primary tool for reducing that footprint, isolating the cardholder data environment from the rest of your network so fewer systems carry the full weight of the requirements.

NOXMON validates your segmentation, identifies in-scope systems you may have missed, and models the risk-and-cost tradeoffs of tightening your CDE boundary. A well-segmented environment is both cheaper to assess and far easier to defend.

  • CDE Definition. Precise identification of every system, process, and person that touches account data.
  • Connected-to Systems. Mapping of adjacent systems that fall in scope through connectivity.
  • Segmentation Validation. Confirmation that controls genuinely isolate the CDE and reduce scope.
  • Scope Reduction Strategy. Practical recommendations to shrink the CDE and lower ongoing effort.

Validation & Approach Options

SAQ vs. ROC

  • Self-Assessment Questionnaire (SAQ). A validation method for eligible merchants and service providers, with several SAQ types matched to how you handle account data.
  • Report on Compliance (ROC). A comprehensive assessment, typically performed with a Qualified Security Assessor, required for higher transaction volumes and larger service providers.

Defined vs. Customized Approach

  • Defined Approach. Meet each requirement using the standard's prescriptive controls and testing procedures.
  • Customized Approach. Meet the security objective of a requirement using alternative controls, supported by a documented targeted risk analysis—a flexibility introduced in v4.0.

How RISKMON Drives Your PCI DSS Program

NOXMON does not hand you a binder of findings and walk away. We use RISKMON to quantify cardholder data environment risk in financial terms, so leadership sees PCI gaps as dollar exposure rather than abstract control numbers. That quantification drives a prioritized remediation roadmap and supports the targeted risk analyses the customized approach requires.

RISKMON also tracks control evidence, findings, and POA&M items to closure—and because v4.0.1 expects controls to be operating continuously, it monitors your posture 24x7 between assessments. The same evidence can be mapped across overlapping frameworks, so PCI work is reused rather than repeated.

  • Quantified CDE Risk. FAIR-based modeling expresses each gap as financial exposure.
  • Evidence Management. Centralized control evidence ready for SAQ or ROC validation.
  • Continuous Compliance. 24x7 monitoring confirms controls remain in place between assessments.
  • Cross-Framework Mapping. One evidence set reused across PCI and other frameworks you must satisfy.

What You Receive

CDE Scope & Segmentation Report

A documented map of your cardholder data environment with segmentation validation and scope-reduction recommendations.

Requirement-by-Requirement Gap Analysis

An assessment of your posture against all twelve PCI DSS v4.0.1 requirements with clear pass/gap status.

Quantified Risk & Remediation Roadmap

Financial exposure modeled in RISKMON with a prioritized, owner-assigned remediation plan.

Validation Readiness Package

Evidence organized for your SAQ or ROC, plus targeted risk analyses for any customized approach controls.

"NOXMON cut our PCI scope dramatically by validating our segmentation properly, and RISKMON turned a stack of findings into a dollar-ranked roadmap our CFO could actually act on. We walked into validation prepared instead of scrambling."

— Director of Engineering, e-commerce and payments company

Tell us about your project

Our offices

  • Houghton
    Houghton, MI 49931
    (212) 913-9184
    info@noxmon.com
  • New York City
    New York, NY 10011
    (212) 913-9184
    info@noxmon.com