Comodo Firewall is a simple, effective and discrete personal firewall. It’s easy enough to use - no matter what your computer skills are - and displays very informative notifications. Comodo's award-winning firewall provides users with prevention-based PC protection that slams the door shut on viruses, malware, and hackers. Firewall is also a part of Comodo Internet Security Pro 2011, which gives you the most robust defense and includes other components like WiFi security, live 24/7 expert assistance for numerous computing needs.