Let me brief you that depending on the length of passwords as well as their complexity, the time required for cracking the password may vary from a few minutes to a few years.
This is an old but effective method, which is loved by hackers, not because it’s quick, but because such attacks are mostly successful. The name itself suggests that brute force attacks are done with extreme force to penetrate systems for gaining personal information. A brute force attack is a type of cyber-attack, where attackers try to work out all the permutations and combinations by testing every key and finding the correct combination of passwords and paraphrases.