Which of the following protocols or technologies would provide in-transit confidentiality protection for emailing the final security assessment report?
Correct Answer: A
S/MIME stands for Secure/Multipurpose Internet Mail Extensions and is a standard for encrypting and signing email messages. It uses public key cryptography to ensure the confidentiality, integrity, and authenticity of email communications. FTPS is a protocol for transferring files securely over SSL/TLS, but it is not used for emailing. DNSSEC is a protocol for securing DNS records, but it does not protect email content. AS2 is a protocol for exchanging business documents over HTTP/S, but it is not used for emailing.
Reference: https://searchsecurity.techtarget.com/answer/What-are-the-most-important-email-security- protocols