Payment Card Industry (PCI) compliance requirements are based on what criteria?

 PCI Compliance Levels:PCI compliance requirements are categorized into levels based on the volume of credit card transactions processed annually.

Level 1: Over 6 million transactions per year.

Level 2: 1 to 6 million transactions per year.

Level 3: 20,000 to 1 million transactions per year.

Level 4: Less than 20,000 transactions per year.

 Why This is Correct:The number of transactions is the primary determinant of compliance level and dictates the level of scrutiny and reporting required.

 Why Other Options Are Incorrect:

A & B: Data retention types and duration are relevant but not the basis for compliance levels.

C. Organization Size: Compliance levels are transaction-based, not dependent on organization size.

 References:PCI-DSS standards explicitly outline compliance criteria based on transaction volume, as emphasized by EC-Council CISO materials.