My firewall (Sygate PFP) has recently been giving me lots of messages indicating that my system is under attack. The severity of the attacks has ranged from minor to critical, and they include such things as port scanning and active intrusions. In every instance, I performed a "backtrack" on the remote host, and notified the relevant ISPs of what was happening. In each case I included a verbatim transcript from my firewall intrusion log, giving the exact time and date, as well as the nature of the attack. I received replies from most of the ISPs that strongly implied they don't intend to do anything. I'm more or less at a loss to know what else to do. I know that the remote hosts I mentioned are probably not the actual hackers, but rather their victims. But still, this is all the information I have, and surely it would help the victims to know that their computers are being used in this way. I have run scans on my system with NOD32 (advanced heuristic) as well as TDS-3, and the results have been negative.