Definition of a brute force attack
A brute force attack is one of the most simple forms of hacking that exists. Unlike many other tactics used by hackers, brute force attacks don’t rely on vulnerabilities within websites. Instead, these attacks rely on users having weak or guessable credentials.
Usually, the motive behind this attack is to use the breached account to execute a large-scale attack, steal sensitive data, or shut down the system. There are widely available automated tools that can submit several hundred password attempts per second, which makes this task easy for an attacker with very little imagination or knowledge.
Passwords are not the only resource that can be brute-forced. Website directories and links, usernames, and emails are also common targets for attackers.