How to Choose and Hire a QSA for Your PCI DSS Audit
You only really get to influence your PCI-DSS audit in two places: how you design your controls, and who you let judge them. QSA selection is the second one, and it’s usually underestimated relative to how much it shapes your next 3–5 years. Under PCI DSS 4.0.1, the assessor’s judgment matters more because several requirements move the discussion into client-side behavior. Scripts, page changes, and third-party components now factor into how compliance is validated.