PCI-DSS Compliance Checklist

Complete implementation guide for PCI-DSS v4.0

Network Security Controls

Install and maintain network security controls (firewalls)
Configure firewall rules to restrict cardholder data environment (CDE)
Remove or change vendor-supplied defaults
Apply secure configurations to all system components
Maintain inventory of all systems in CDE
Document network diagrams showing CDE boundaries

Data Protection

Encrypt cardholder data at rest (AES-256)
Encrypt cardholder data in transit (TLS 1.2+)
Never store sensitive authentication data after authorization
Mask PAN when displayed (show only last 4 digits)
Implement key management procedures
Define and enforce data retention and disposal policies