PCI DSS Requirements 1–12, explained properly
One deep guide per requirement: the controls that decide assessments, where programmes actually fail, and the evidence a QSA accepts — from the PCI SSC-listed QSA firm that runs these assessments.
Install and Maintain Network Security Controls
Apply Secure Configurations to All System Components
Protect Stored Account Data
Protect Cardholder Data with Strong Cryptography During Transmission
Protect All Systems and Networks from Malicious Software
Develop and Maintain Secure Systems and Software
Restrict Access to System Components and Cardholder Data by Business Need to Know
Identify Users and Authenticate Access
Restrict Physical Access to Cardholder Data
Log and Monitor All Access to System Components and Cardholder Data
Test Security of Systems and Networks Regularly
Support Information Security with Organizational Policies and Programs
Start with the PCI scope checker, or go straight to PCI DSS services.