Compliance

PCI DSS penetration testing scoped to your cardholder data environment

We agree the CDE boundaries and testing window up front, then perform careful internal and external testing aligned to PCI DSS 4.0 Requirement 11.4. The work is non-disruptive, with reports formatted for QSA review.

Make PCI DSS testing evidence unambiguous

QSAs need traceable evidence for Requirement 11.4. Security teams need clarity on what was tested and why. We align both before testing starts.

⚠️ Where PCI DSS testing gets unclear

Ambiguity appears when the CDE boundary, coverage, and reporting format are misaligned.

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CDE scope is not explicit

Testing touches assets outside the CDE or misses critical payment paths.

Impact: Coverage is harder to defend during QSA review

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Testing windows are loosely defined

Change controls and test timing are not coordinated with operations.

Impact: Teams spend time explaining variability in results

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Evidence formats vary

Findings lack consistent steps, artifacts, and CDE context.

Impact: Stakeholders interpret results differently

How we reduce ambiguity

We lock scope, evidence, and reporting structure up front.

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CDE-aligned scope

We define CDE boundaries and in-scope systems with your compliance lead or QSA.

Outcome: Clear justification for what was tested

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Requirement 11.4 mapping

Coverage and findings reference PCI DSS 4.0 Requirement 11.4 objectives.

Outcome: Auditor-ready evidence without extra translation

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Consistent evidence pack

Each issue includes steps, impact, and supporting artifacts in a repeatable format.

Outcome: Faster internal review and remediation planning

Credibility your auditors can reference

We have spent over a decade testing B2B SaaS products across apps, APIs, cloud, and identity. That work spans 700+ engagements across 150+ organizations, with a repeatable set of findings and fixes that map cleanly to PCI DSS 4.0 Requirement 11.4 expectations.

Our approach is visible before you engage. We publish research, share sample reporting, and contribute open source tools and training so your team can evaluate our depth without taking a leap of faith.

Teams preparing for PCI DSS use our documentation to show CDE-aligned scope, coordinated windows, and evidence formatted for QSA review. It is designed to be reviewable internally and defensible in assessment conversations.

Attack paths tested against your CDE

PCI DSS 4.0 Requirement 11.4 expects testing that reflects how attackers reach payment data. We model realistic paths into the CDE and document evidence in a format that maps to Requirement 11.4 objectives.

External Entry Points to the CDE

Attackers start where exposure exists. We map and test the external paths that lead into the CDE boundary.

  • External attack surface mapped to in-scope CDE systems
  • Segmentation controls validated on exposed services
  • TLS and cipher posture reviewed on payment-facing endpoints
  • Public admin interfaces checked for hardening
  • Testing windows coordinated before active validation

Authentication & Privileged Access

Access control failures are common pivot points. We test the same paths attackers use to reach privileged actions.

  • MFA enforced for administrative and CDE-access roles
  • Session handling across login, logout, and role changes
  • Privilege escalation paths validated for service and admin accounts
  • Account recovery flows tested for bypasses
  • Access to CDE actions logged with actor and time

Payment Applications & APIs

Payment workflows are high value. We validate authorization, validation, and guardrails across critical flows.

  • Authorization enforced on payment and tokenization endpoints
  • Input validation on payment and refund workflows
  • Business-logic checks on refunds, voids, and limits
  • Rate limits on high-risk operations
  • Error handling avoids PAN exposure

CDE Data Handling & Evidence

PCI DSS relies on clear evidence for how payment data is protected. We verify controls and capture artifacts.

  • PAN and sensitive authentication data protected at rest and in transit
  • Tokenization and key access controls reviewed
  • Logs exclude sensitive data and remain reviewable
  • Retention and deletion controls documented
  • Backups and exports protected with access controls

Defensible PCI DSS evidence, not just a test report

We structure PCI DSS testing so you can explain the scope, coverage, and results to QSAs and internal reviewers without extra translation.

✅ What makes the work defensible

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CDE scope agreed in writing

We confirm boundaries, in-scope systems, and testing exclusions up front so evidence maps cleanly to the CDE.

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Requirement 11.4 mapped coverage

Findings and artifacts reference PCI DSS 4.0 Requirement 11.4 objectives so QSA review is straightforward.

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Consistent evidence pack

Each issue includes steps, impact, and supporting artifacts in a repeatable format for audit review.

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Testing windows coordinated

We plan timing with operations so changes and evidence are explainable and non-disruptive.

❌ When a different engagement is a better fit

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You need a scan-only compliance attestation

If you only need an automated scan report, a lightweight compliance scan vendor may be faster.

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You need a same-week test with no coordination

We require a brief scoping step to align the CDE and evidence requirements before testing.

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Your CDE boundary is still being defined

We can start once the CDE scope is documented so the results remain defensible in review.

We're probably not a good fit if:

You're just starting development (no production users yet)
Budget is the primary consideration over security quality
You need results 'yesterday' without proper planning
Your primary goal is to pass an audit, not improve security

If any of these apply, we can point you to a compliance-only vendor while you finalize your CDE scope.

Reinforced Confidence

PCI DSS evidence that holds up in review

Teams preparing for PCI DSS 4.0 value clear CDE scope, Requirement 11.4 mapping, and evidence that is easy to trace. That consistency makes QSA review calmer and decisions easier to defend.

Infoblox
Appknox
Atomicwork
Accorian

Representative customers shown with permission. References available under NDA.

They aligned the testing scope to our CDE boundary and kept the evidence consistent. It made the QSA conversation straightforward.

Compliance Lead

Payments Platform

Requirement 11.4 mapping was clear in every finding, so we did not have to reformat evidence for the audit team.

Security Manager

B2B SaaS Company

The report focused on traceable artifacts and calm explanations. It helped us defend the approach internally without extra translation.

Head of GRC

Fintech Team

If you would like to speak with a PCI DSS reference, we can arrange a quiet conversation under NDA.

Safe next step

Review your PCI DSS scope,then decide.

We can walk through your CDE boundary, confirm what we would test, and share a fixed scope aligned to Requirement 11.4. No commitment required.

Schedule a PCI DSS scope review

or See a sample PCI DSS report first

No obligation
Fixed scope and coordinated window
Evidence formatted for QSA review