Overview of PCI DSS 4.0 Changes and Compliance

This document is a guide detailing the updates and requirements of PCI DSS 4.0. It outlines the evolution of the Payment Card Industry Data Security Standard, which was established to enhance credit card data security. The guide explains the significant changes introduced in version 4.0, including a greater emphasis on security objectives, flexibility through customized controls, and enhanced user authentication mechanisms. Key updates include the introduction of multifactor authentication for all accounts with cardholder data access and expanded encryption requirements. The guide also highlights the shift towards continuous compliance, requiring organizations to maintain ongoing adherence to security standards rather than treating compliance as a one-time event. Additionally, it discusses how telecom companies can prepare for these changes by conducting gap assessments and aligning their security strategies with the new requirements. The document concludes by emphasizing the importance of understanding these updates to ensure proper implementation and compliance.