Which phase of an advanced persistent threat enables anintruder to gain useful information about the target?

a. The discovery phase
b. The capture phase
c. The reconnaissance phase
d. The incursion phase

c. The reconnaissance phase
An advanced persistent threat (APT) is a network attack in which an intruder gains access to a network and stays there—undetected—with the intention of stealing data over a long period of time. The intruder begins by conducting reconnaissance on the network to gain useful information about the target (security software installed, computing resources connected to the network, number of users, etc.).