From tripwire.com
A brute force attack is an attempt to reveal passwords and login credentials in order to gain access to network resources. These attacks are mainly done with the purpose of gaining unauthorized, and undetected access to compromise systems. Threat actors usually prefer this attack method since it is simple to carry out, and can cause significant damage. Once a person’s credentials are revealed, the attacker can log in, generally unnoticed.
Brute force attacks are still prevalent today, and many organizations are frequently affected. The most common motives behind Brute force attacks are to steal sensitive data, spread malware, hijack systems, and make websites and systems unavailable.