What is one method to help reduce the number of system components in scope for PCI DSS?

Using network segmentation is an effective method for reducing the number of system components in scope for PCI DSS compliance. Network segmentation involves dividing a computer network into smaller, isolated segments, which can help restrict access to sensitive data and systems. By implementing segmentation, organizations can create a security perimeter around the systems that store, process, or transmit cardholder data, effectively limiting the scope of PCI DSS requirements to those specific segments.

This approach allows organizations to focus their compliance efforts on fewer components, reducing the overall complexity and cost associated with achieving and maintaining PCI DSS compliance. It can also enhance security by limiting the potential attack surface. Sensitive systems can be protected more rigorously since they are isolated from the rest of the network.

In contrast, performing financial risk assessments generally evaluates the financial implications of data breaches but does not directly reduce the number of systems in scope. Eliminating all third-party services may not be feasible or practical, as many businesses rely on those services. Enhancing transaction speeds, while important for a successful payment processing environment, does not have a direct impact on the scope of PCI DSS compliance.