What type of training is essential for employees regarding PCI DSS?

The correct response highlights the importance of general security awareness training for employees regarding PCI DSS compliance. This type of training equips all employees, regardless of their roles, with the foundational knowledge they need to recognize security threats and understand their responsibilities in protecting cardholder data.

General security awareness training covers best practices, the significance of safeguarding sensitive information, and common threats like phishing, malware, and social engineering. By providing this training, organizations can foster a culture of security mindfulness, enabling staff across all levels to contribute to the overall security posture.

While advanced technical training, leadership training, and customer service training may play important roles in an organization's ecosystem, they do not address the broader need for every employee to be aware of security issues and the implications of PCI DSS compliance. Only general security awareness training ensures that all staff members, not just technical ones, have the information necessary to recognize vulnerabilities and adhere to compliance standards effectively.