BlackIce Defender is an industrial-strength anti-hacker system that delivers unmatched protection to your PC. It scans your DSL, cable modem, or dial-up Internet connection looking for hacker activity. When it detects an attempted intrusion, it automatically blocks traffic from that source, keeping intruders from accessing your system.
||Free to try
||Windows 95/98/Me/NT/2000/XP, BlackIce Defender Workstation