PCI DSS guides & explainers
Practical, source-backed guides to PCI costs, scoping, SAQ selection, QSA selection, and v4.x readiness -- written for the person who has to get it done.
PCI SAQ Types Explained: A, A-EP, B, B-IP, C, C-VT, D, and P2PE
Which Self-Assessment Questionnaire applies to your business -- eligibility rules for every SAQ type, in plain English.
ROC vs SAQ: Which PCI Validation Path Do You Actually Need?
When a QSA-led Report on Compliance is mandatory, when self-assessment suffices, and the cost difference between the two.
How to Choose a PCI QSA Firm: 9 Questions to Ask
The vetting checklist we recommend: listing verification, team, fees, sampling, and the red flags that signal a bad fit.
PCI DSS v4.0.1: What's Actually New (and Now Enforced)
The 47 future-dated requirements that became mandatory March 31, 2025 -- scripts, MFA, tamper detection, and risk analyses explained.
PCI Scoping: How to Shrink Your Cardholder Data Environment (Legitimately)
Scoping is the biggest cost lever in PCI. How segmentation, P2PE, and outsourcing reduce what the assessor has to test.
PCI Penetration Testing Requirements (11.4): What Assessors Expect
Annual network and application pen testing, segmentation validation, and what the formal report must contain.
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