Which option best describes protecting the content of email messages from unauthorized access?

Which option best describes protecting the content of email messages from unauthorized access?

• A. Data in transit
• B. HTTPS
• C. VPN
• D. Email encryption

Answer: (D)

Protecting the content of email messages from unauthorized access is achieved by encryption that conceals the message body and attachments so only the intended recipient with the correct key can read them. This end-to-end protection goes beyond simply securing the transport path; even if the message is intercepted or stored on servers, the encrypted content remains unread without the key. Email encryption, using standards like S/MIME or PGP, ensures that the actual content is readable only by the intended recipient. Transport-level protections, such as data in transit, HTTPS, or VPNs, secure the channel but do not guarantee that the email content itself remains confidential at rest or on servers.

Protecting the content of email messages from unauthorized access is achieved by encryption that conceals the message body and attachments so only the intended recipient with the correct key can read them. This end-to-end protection goes beyond simply securing the transport path; even if the message is intercepted or stored on servers, the encrypted content remains unread without the key. Email encryption, using standards like S/MIME or PGP, ensures that the actual content is readable only by the intended recipient. Transport-level protections, such as data in transit, HTTPS, or VPNs, secure the channel but do not guarantee that the email content itself remains confidential at rest or on servers.