Editors' Note: The Download Now link will download a small installer file to your desktop. Remain online and double-click the installer to proceed with the actual download.
ZoneAlarm free firewall includes Full Stealth Mode, which makes your PC invisible to hackers, and Kill Controls, which instantly disable malicious attacks. It's easy to use and operates automatically, so you'll never be interrupted with unnecessary alerts. ZoneAlarm free firewall also comes with free Online Backup, Identity Protection, and Gamer Mode.
What's new in this version:
Fixed: compatibility issues with 3rd party software, including iTunes and Star Wars: Knights of the Old Republic.