Millions of people around the world use ZoneAlarm Free Firewall. Our free software blocks hackers and prevents viruses & spyware from stealing your personal data and sending it out to the Internet. Also, works great with any antivirus software.
- Free protection against hackers and spyware
- Effective and quiet security that won’t slow you down
- Easy for anyone with new quick install and simple interface
ZoneAlarm is FREE for individual and not-for-profit charitable entity use (excluding governmental entities and educational institutions).
Makes your PC invisible to hackers and stops spyware from sending your data out to the Internet.
ZoneAlarm Security Toolbar
Provides security information about sites you visit, convenient web search, and more
Support. Offers 24/7 live chat and free latest version upgrades.
Apps similar to ZoneAlarm Free Firewall 4
Free Comodo Firewall with prevention-based protection.
- Free to try
Eliminates unauthorized access to your PC at home, the office, or on the road.
- Free to Try
Monitors all your computer's network activity and protects you against both incoming and outgoing connections.
- Windows 2k/XP