A brute force attack checks all possible keys to decrypt encrypted data by exhausting the possible key space. For a password with two characters, there are 3,844 possible guesses because each character can be one of 62 possible letters, numbers or symbols. While unbreakable codes theoretically exist, proper implementation is needed, and administrators can limit the effectiveness of brute force attacks by restricting the number of login attempts and IP addresses.

1. Brute Force AttackBy GeorgiPeshev

2. Overview What is Brute Force Attack

3. Password Length Guesses

4. Brute Force Attack Limits

5. Unbreakable codes

6. Countermeasures

7. Questions

8. ReferencesWhat is Brute Force AttackPart of cryptography

9. Attack used against passwords