Which of the following is the BEST method to securely transfer a message?
A.
Password-protected removable media
B.
Facsimile transmission in a secured room
C.
Using public key infrastructure (PKI) encryption
D.
Steganography
Explanation:
Using public key infrastructure (PKI) is currently accepted as the most secure method to transmit
e-mail messages. PKI assures confidentiality, integrity and nonrepudiation. The other choices are
not methods that are as secure as PKI. Steganography involves hiding a message in an image.