Personal Firewall

The Trend Micro PC-cillin 2002 Personal Firewall protects your computer against attacks from the Internet. A firewall creates a barrier between your computer and the network (LAN, Internet). This barrier examines and filters network traffic to your computer. By filtering network traffic, the firewall prevents malicious programs or files from entering your computer.

Actually composed of three components (cloaking, firewall, Trojan backdoor blocking), the Personal Firewall lets you control the security level, create a list of sites you know can be trusted, and view a list of blocked ports.