Firewall Software
Popular Firewall Software

The following list identifies the most commonly downloaded personal firewall software1. This provides a loose representation of the latest consumer trends, identifying what software people are interested in trying or buying:
ZoneAlarm is designed to protect your DSL- or cable-connected PC from hackers. This program includes four interlocking security services: a firewall, an application control, an Internet lock, and Zones. The firewall controls the door to your computer and allows only traffic you understand and initiate. The application control allows you to decide which applications can and cannot use the Internet. The Internet lock blocks Internet traffic while your computer is unattended or while you're not using the Internet, and it can be activated automatically with your computer's screensaver or after a set period of inactivity. Zones monitor all activity on your computer and alert you when a new application attempts to access the Internet.
Armor2net Personal Firewall stops hackers and data thieves and protects your PC from Internet-borne threats. It meets your requirements for Internet security and privacy. This PC firewall monitors all Internet connections to and from your computer to ensure that only legitimate traffic is allowed, and alerts you to attempted intrusions. You have the option to grant and deny access to the Internet on a per-application basis, thus preventing worms, Trojan horses, and spyware programs.
Tiny Personal Firewall integrates several protection layers for the ultimate safety of the desktop and server. Traditional Firewall blocks the network traffic based on protocol, ports, and application. Intrusion Detection and Prevention blocks the network traffic based on the content of packets. Malicious packet content is frequently used by hackers exploiting vulnerabilities of otherwise trusted applications, such as Windows kernel components, IIS and others. Application Security controls the behavior of applications and controls whether the application may start itself or whether it may start others.
Prevx Home provides a critical last line of defense, protecting your computer against sophisticated, new attacks all other security measures fail to stop. This powerful, host-intrusion-prevention software will protect against malicious intrusions capable of crashing your system, stealing confidential information, tracking your browsing behavior, hijacking your PC, and slowing down your Internet connection.
Sygate Personal Firewall Pro provides a multilayered shield of network, content, application, and operating-system protection for your PC. In addition to advanced firewall technologies, the Pro version integrates a world-class Intrusion Prevention System (IPS) that includes application-based IDS, DOS protection, and Trojan horse protection. Sygate Personal Firewall Pro is the ultimate desktop-security solution, trusted by professionals and relied upon by millions of users.