PCI DSS 4.0.1 emphasizes industry collaboration in cybersecurity, focusing on outcomes rather than methods. The update strengthens encryption requirements and highlights the need for continuous monitoring of security measures. This version serves as a valuable standard for improving cybersecurity within the payment card industry.

Kafka poses significant challenges for securing cardholder data in compliance with PCI-DSS, particularly due to its lack of built-in encryption for data at rest. Kroxylicious, a Kafka protocol-aware proxy, enables end-to-end encryption of sensitive payment information without requiring code changes to existing applications, thus simplifying the implementation of security measures in a microservices architecture. The article discusses how to set up Kroxylicious to encrypt Kafka messages effectively.