also take into account firms that use NAT addressing. coupla years ago I had someone in my area constantly fluffing their renderosity password and locking the whole of Leeds out. the response from the admins here showed a clear lack of understanding of the problem since they insisted it could work the way it was working.. that they were locking an individual IP and not a router... I find it very interesting the continued denial by the admins that there is a problem. to put it bluntly, their system is not secure. yet they stick their heads in the sand and go "la la la I'm not listening!!"