http://wordpress.org/extend/plugins/limit-login-attempts/
This one works great with WordPress, not sure how it plays with bbPress but give it a try.
Hi thanks I have activated the plugin succesfully and this would be ideal, unfortunetly it does not show Settings > Limit Login Attempts and does not seem to take affect.
Is there any plugins like this which are native to bbpress?
Wait, what version of bbPress are you using?
Oh, my apologies – I assumed you were on bbPress 2.x.
I’m not very familiar with 1.x (stand-alone) so I can’t really say I know of a solution for that.
