ZoneAlarm makes it easy. Unlike other personal firewalls, ZoneAlarm protects automatically from the moment it's installed - no programming required. ZoneAlarm barricades your PC with immediate and complete port blocking. And, then runs in Stealth Mode to make your PC invisible on the Internet - if you can't be seen, you can't be attacked.

ZoneAlarm delivers simplicity without compromising your security. A getting started tutorial explains controls and alerts to get you up and running quickly. And, to keep you confident that you're always protected, intuitive color-coded alerts rate security risks - in real time.

Limitations: 15-day trial