ZoneAlarm is an easy-to-use firewall that blocks hackers and other unknown threats.
Intrusion Blocking systematically identifies hackers and blocks access attempts.
Stealth Mode automatically makes your computer invisible to anyone on the Internet.
Automatic Program Configuration provides safety and simplicity by automatically configuring programs. Automatically decides whether to allow or deny Internet access to individual programs.
Expert Controls give savvy users precise control over security settings.
Unfortunately, most firewalls leak. But Comodo's Firewall is unique in that it passes all known leak tests to ensure the integrity of data entering and exiting your system. Comodo has put firewall through all kinds of sophisticated tests to ensure its firewall powerful enough to ward off these attacks with default settings. No other firewall has had to work this hard.
PC Magazine Online's Editor's Choice
Secures against internal and external attacks
Blocks internet access to malicious Trojan programs
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