Which legislation mandates the protection of customer data in emails?

The selection highlighting various laws, including GDPR, HIPAA, and PCI-DSS, is accurate because multiple legislative frameworks have been established to protect customer data in emails and other forms of communication.

GDPR (General Data Protection Regulation) specifically focuses on data privacy in the European Union, providing stringent rules on how personal data must be handled and requiring explicit consent for data processing. This regulation affects any organization that handles personal data of EU citizens, influencing email communication by ensuring data protection and privacy.

HIPAA (Health Insurance Portability and Accountability Act) is critical in the United States for protecting sensitive patient health information. Organizations that deal with protected health information must follow HIPAA guidelines, making it relevant for email communication involving patient data.

PCI-DSS (Payment Card Industry Data Security Standard) sets standards for organizations that handle credit card information. This regulation ensures that sensitive data transmitted via email is encrypted and secure, thus enhancing customer data protection in financial transactions.

In summary, the correct answer reflects the multifaceted approach to data protection in emails, where compliance with various regulations is necessary to ensure the security and privacy of customer information in different sectors and jurisdictions.