A security analyst needs to determine how an attacker was able to use User$3$ to gain a foothold within a company's network. The company's lockout policy requires that an account be locked out for a minimum of $15$ minutes after three unsuccessful attempts. While reviewing the log files the analyst discovers the following:$*$

$1\mathrm{.}2$

$1$ point

Which of the following attacks MOST likely occurred?

Dictionary

Credential$-$stuffing

Password$-$spraying

Brute$-$force