01
External Network Testing
Assess internet-facing systems and services that expose or protect the payment environment.
PCI DSS Penetration Testing
Test the Systems and Segmentation Your PCI DSS Assessment Depends On
PCI DSS penetration testing is not just a vulnerability scan. It needs to test exploitable attack paths across the CDE, critical systems, applications and segmentation controls in a way that supports your PCI validation obligations.
2-sec combines penetration-testing depth with PCI DSS assessment experience, so the programme can be scoped around the systems and controls that matter to your compliance position.
Requirement-Driven Testing
PCI DSS Penetration Testing Validates What Scanning Alone Cannot
PCI DSS penetration testing evaluates whether vulnerabilities, application flaws, network weaknesses or segmentation failures can be exploited in the environment that supports payment security.
The test scope should reflect the CDE, critical systems and relevant application and network layers. Where segmentation is used to reduce scope, testing can also verify that those controls effectively isolate the CDE.
PCI Testing Scope
Testing Aligned to the Payment Environment
The exact programme depends on architecture and validation needs.
02
Internal Network Testing
Test internal attack paths, privilege escalation and lateral movement toward the CDE.
03
Web Application Testing
Assess payment applications and supporting web systems for exploitable weaknesses.
04
API Testing
Evaluate payment APIs, authentication, authorisation, input handling and business logic.
05
Segmentation Testing
Verify whether network segmentation genuinely prevents out-of-scope systems from reaching the CDE.
06
Retesting
Re-test remediated findings so corrected issues can be evidenced and closed.
What the Test Should Establish
Practical Questions a PCI Test Needs to Answer
The output should support remediation and validation, not just list CVEs.
Can an External Attacker Reach the CDE?Test exposed pathways.
Can an Internal User Pivot?Assess trust boundaries and lateral movement.
Are Applications Exploitable?Test application-layer weaknesses.
Do Segmentation Controls Hold?Attempt to cross scope boundaries.
Are Findings Reproducible?Provide actionable evidence.
Can Remediation Be Verified?Retest corrected issues.
Does Scope Match PCI?Align testing with the documented CDE.
Is Reporting Assessment-Ready?Produce useful evidence for the wider PCI process.
How 2-sec Approaches It
A PCI Penetration Test Built Around the CDE
01
Confirm PCI Scope
Review the CDE, segmentation model, applications and supporting systems.
02
Build Test Scenarios
Define realistic external, internal, application and segmentation attack paths.
03
Execute Testing
Combine manual testing with appropriate tooling.
04
Report and Prioritise
Explain impact, evidence and remediation guidance.
05
Retest Remediation
Verify that corrected findings no longer expose the pathway.
If segmentation keeps systems out of PCI scope, make sure it actually holds when someone tries to cross it.
Scope a PCI Penetration Test ↗PCI Penetration Testing Questions
Frequently Asked Questions About PCI DSS Penetration Testing
Is a vulnerability scan the same as a PCI DSS penetration test?
No. Scanning identifies known weaknesses; penetration testing attempts to exploit weaknesses and attack paths.
Does PCI DSS require internal and external penetration testing?
PCI DSS includes penetration-testing requirements covering the CDE perimeter and critical systems, including internal and external testing as applicable.
Do segmentation controls need to be tested?
Where segmentation reduces PCI DSS scope, its effectiveness needs to be validated.
Can 2-sec test web applications and APIs?
Yes. 2-sec provides web application, API and infrastructure penetration testing that can be aligned with PCI scope.
What happens after findings are fixed?
2-sec can retest remediated findings and provide closure evidence.
Continue Your PCI DSS Journey
Related PCI DSS Services
PCI DSS ScopingDefine the CDE, critical systems and segmentation boundaries first so the penetration test covers the assets your PCI assessment actually depends on.PCI DSS Gap AnalysisIdentify wider control, process and evidence gaps that technical testing alone will not reveal before formal validation begins.PCI DSS ComplianceConnect penetration testing to the wider PCI programme, including scoping, remediation, validation and ongoing control maintenance.