Taking multiple measures to crack a password

Any Cracking of Passwords is against the Law in most parts of this planet

Brute-Force Password cracking is the lowest common denominator of password cracking. More common methods of password cracking, such as dictionary attacks, pattern checking, word list substitution, etc., attempt to reduce the number of trials required and will usually be attempted before brute force.

Brute-Force can take hours, day, months, or even several years to complete. The amount of time taken to Brute-Force a password is often extremely illogical for any low-grade everyday password-cracker.

This has to do with passwords in computing. A salt is a random datum which is added by the system to a password to make cracking more difficult.

It was during the 911 attack