Payment Card Industry (PCI) Data Security Standards are a set of security standards designed to ensure that all businesses that accept, process, store, or transmit credit card information maintain a secure environment. Coursera's PCI catalogue trains you in major aspects of maintaining payment security. You'll learn about building and maintaining secure networks, protecting cardholder data, implementing strong access control measures, monitoring and testing networks, and managing information security policies. This knowledge will equip you to not only safeguard customer payment data but also to ensure compliance with related legislation and regulations, making you an invaluable asset in any organization handling card payments.