This type of attack uses software to try thousands of common words sequentially in an attempt to gain unauthorized access to a user’s account.

The type of attack you're referring to is known as a "Brute Force Attack". Here's how it works:

1. The attacker selects a target: This could be a website, a server, or a specific user account.

2. The attacker uses a software: This software is designed to systematically check all possible passwords until the correct one is found.

3. The software starts the attack: It begins to try thousands of common words sequentially. This is often done using a dictionary of common passwords or phrases.

4. The software continues the attack: It keeps trying different combinations until it either finds the correct password or has exhausted all possibilities.

5. If the attack is successful: The attacker gains unauthorized access to the user’s account.

This type of attack can be prevented by using strong, unique passwords and enabling multi-factor authentication.