Hmmm...could you also make a pause button or a feature that would check if so far the cracker is working (because it could have been ip blocked). Something like a dummy account made just for checking it. Of course the process of checking it wouldn't be visible (the account info) so it would look something like this. "{ If account access = granted, display [Cracker is still working!]}
Also everyone knows that at the main page that you can login to play,after a few attempts, the account gets locked from that IP. Why not try it on manage account thing? Except if it is has the same effect. :/