What is a backdoor?

What is a backdoor?
A . A backdoor is a social engineering attack to get access back to the victim.
B . A backdoor is a privilege escalation attack designed to get access from the victim.
C . A backdoor is an application or code used by an attacker either to allow future access or to collect information to use in further attacks.
D . A backdoor is malware installed using man-in-the-middle attacks.

View Answer

Answer: C