Which of the following would be the GREATEST cause for concern when data are sent over the Internet using
HTTPS protocol?

A.
Presence of spyware in one of the ends

B.
The use of a traffic sniffing tool

C.
The implementation of an RSA-compliant solution

D.
A symmetric cryptography is used for transmitting data

Explanation:
Encryption using secure sockets layer/transport layer security (SSL/TLS) tunnels makes it difficult to intercept
data in transit, but when spyware is running on an end user’s computer, data are collected before encryption
takes place. The other choices are related to encrypting the traffic, but the presence of spyware in one of the
ends captures the data before encryption takes place.