You work as a Network Administrator for NetTech Inc. The company wants to encrypt its e-mails.
Which of the following will you use to accomplish this?
A.
PGP
B.
PPTP
C.
IPSec
D.
NTFS
Explanation:
Standard Internet e-mail is usually sent as plaintext over networks. This is not secure as
intruders can monitor mail servers and network
traffic to obtain sensitive information. The two most commonly used methods for providing e-mail
security are Pretty Good Privacy (PGP) and
Secure/Multipurpose Internet Mail Extensions (S/MIME). These methods typically include
authentication of the originator and privacy of the
message.
Pretty Good Privacy (PGP) is an encryption method that uses public-key encryption to encrypt and
digitally sign e-mail messages during
communication between e-mail clients. PGP is effective, easy to use, and free. Therefore, it is one of
the most common ways to protect
messages on the Internet.
Answer option C is incorrect. Internet Protocol security (IPSec) provides secure communication over
IP networks. It cannot be used to encrypt
e-mail messages.