An administrator is reviewing a single server's security logs and discovers the following: Which of the following best describes the action captured in this log file?

A brute-force attack involves systematically trying many password combinations until the correct one is found. The log shows repeated failed login attempts from the same source (likely an IP address or username) within a short timeframe, which is characteristic of a brute-force attempt. Privilege escalation is incorrect because the log shows failed login attempts, not an attempt to gain higher privileges after logging in. A failed password audit is incorrect because while the log shows failed passwords, the action described by the pattern of multiple, rapid failures is a brute-force attack, not an audit. Forgotten password by the user is incorrect because a single user forgetting a password typically results in fewer, more spaced-out failed attempts, often followed by a password reset request, not a rapid succession of many different password guesses.