I see that they monitor for "potentially hazardous open port"... meaning that they are scanning your for viruses, open relays, other servers? Their AUP says you can't operate any server...
I seem to be regularly (almost exclusively) port scanned by addresses within the same range as me. I thought it might be the ISP checking on my "potentially hazardous open ports" . I asked my ISP for some explanation or if they were responsible for annoying alerts from my firewall and their response was that "no it must be another of our customers". Nice. Thanks.

Anyone have any ideas why they would all come from the same range as me?