A financial analyst is expecting an email containing sensitive information from a client. When the email arrives, the analyst receives an error and is unable to open the encrypted message.
Which of the following is the most likely cause of the issue?
A. The S'MIME plug-m is not enabled.
B. The SSL certificate has expired.
C. Secure I MAP was not implemented.
D. P0P3S is not supported.
Explanation:
The most likely cause of the issue is that the S/MIME plug-in is not enabled. S/MIME stands for Secure/Multipurpose Internet Mail Extensions, which is a standard that allows email users to encrypt and digitally sign their messages. S/MIME uses public key cryptography and certificates to ensure confidentiality, integrity, authenticity, and non-repudiation of email communications. However, S/MIME requires both the sender and the receiver to have compatible email clients and plug-ins that support S/MIME functionality. If the receiver does not have the S/MIME plug-in enabled, they will not be able to decrypt or verify the encrypted message.