ZoneAlarm Free Firewall

Spec sheet

Purpose

The firewall monitors incoming and outgoing traffic to block potential threats.Read 11 Oct 2026 · zonealarm.com

Free plan

YesRead 21 Sep 2026 · zonealarm.com

Support

The product page lists the online support center, live chat, and email assistance as support options.Read 11 Oct 2026 · zonealarm.com

Headquarters

100 Oracle Parkway, Suite 800, Redwood City, CA 94065, United StatesRead 19 Oct 2026 · zonealarm.com

Founded

1997Read 19 Oct 2026 · zonealarm.com

Maker

ZoneAlarm identifies itself as the consumer brand of Check Point Software Technologies Inc.Read 11 Oct 2026 · zonealarm.com

Anti-bot

It detects and blocks harmful bots in real time, including bots associated with botnet infiltration, spamming, and data theft.Read 11 Oct 2026 · zonealarm.com

Compatibility limit

ZoneAlarm says it is compatible only with Microsoft Windows Defender and instructs users to uninstall other anti-malware software before installation.Read 11 Oct 2026 · zonealarm.com

Early boot protection

Early Boot Protection checks whether the PC is running a trusted operating system or a rootkit.Read 11 Oct 2026 · zonealarm.com

Installer option

The installation instructions offer an option to add the Web Secure Chrome browser extension or skip it.Read 11 Oct 2026 · support.zonealarm.com

Network settings

Users can classify their home network as private and untrusted networks as public zones.Read 11 Oct 2026 · zonealarm.com

Program control

It blocks unwanted traffic and lets users control programs’ access to the internet.Read 11 Oct 2026 · zonealarm.com

Protection limit

The maker says the free firewall may not provide complete protection against all types of cyber threats and points users seeking wider coverage to a premium product.Read 11 Oct 2026 · zonealarm.com

Requirements

The listed system requirements include Windows 10 or 11, a 2 GHz or faster processor, and 1.5 GB of available disk space.Read 11 Oct 2026 · zonealarm.com

Updates

The firewall automatically checks for updates that include threat definitions, security rules, and features.Read 11 Oct 2026 · zonealarm.com

Wi-Fi protection

WiFi PC Protection monitors programs for suspicious behavior and shields users on unsecured networks.Read 11 Oct 2026 · zonealarm.com

Plans and prices

Every ZoneAlarm Free Firewall plan and price →

Where Specifiction places it

• Firewall Software#46 of 807.8
• Firewall Management Software#21 of 297.2