Password cracking is the process of guessing the correct password to an account in an unauthorised way. Every password has vulnerabilities, and this makes them easy to hack.
Attackers use various techniques to crack passwords, including the use of records obtained from data breaches.
The most common method used by threat actors is a dictionary attack, using a file containing words that can be found in dictionary and are common passwords. Brute force attacks involve an attacker submitting many passwords with the hope of eventually guessing correctly.