How many requirements are there in PCI DSS version 3.2.1?

PCI DSS version 3.2.1 includes a total of 12 requirements. These requirements are organized into six categories, often referred to as "control objectives." Each requirement aims to ensure that organizations that handle credit card information maintain a robust security posture to protect cardholder data.

The 12 requirements cover various aspects of security, such as building and maintaining a secure network, protecting cardholder data, maintaining a vulnerability management program, implementing strong access control measures, regularly monitoring and testing networks, and maintaining an information security policy.

Understanding the structure and content of these requirements is foundational for anyone involved in securing payment card information, as compliance with PCI DSS is essential for reducing the risk of data breaches and fraud.