Final answer:
Brute force attacks use all possible combination of letters, numbers, and special characters to determine the target password.
Step-by-step explanation:
The correct answer is Brute Force. Brute force attacks use all possible combinations of letters, numbers, and special characters to determine the target password. They are a methodical and time-consuming approach to cracking passwords.
For example, let's say a password consists of 4 digits. A brute force attack would start with 0000 and then try 0001, 0002, and so on until it finds the correct password. This method can be effective but requires a lot of computational power and time.
Brute force attacks are commonly used by hackers to gain unauthorized access to systems or accounts. It's important to use strong and complex passwords to protect your accounts.