Not much info there on it... will it protect against real-world bruteforce attacks? Ie large proxy based bruteforce attacks?
Theres a lot of scripts/modules out there that say they prevent brute force attacks -- and they do, so long as the attack is using the same ip, or using the same proxy more than a few times to scan passwords.
Ours is more a "wtf is going on here?!" bruteforce deterrant
It'll prevent all bruteforce attempts if used properly.