Comparing Comodo firewall vs ZoneAlarm firewall


comodo firewall vs zone alarm firewall graphic


Comodo firewall vs ZoneAlarm firewall

Since having a trustworthy firewall is a must-have for any computer that is connected to the Internet or even a local network, here we are going to compare Comodo firewall vs ZoneAlarm firewall to help you find the software that fulfills your needs, the best.

As your computer’s first line of defense against online security threats, such as hackers, viruses, and malware that try to access your computer over the Internet or through the local network, the firewalls are responsible to examine all the information coming in through your Internet or network connection and filter out any dangerous content and threatening communications.

ZoneAlarm and Comodo are both considered veterans in the computer security industry. So, comparing Comodo firewall vs ZoneAlarm firewall can help you get familiar with two of the most well-tried antimalware tools in the world.

Comodo firewall vs ZoneAlarm firewall: history

ZoneAlarm was created by Zone Labs, a private computer and Internet security company, headquartered in San Francisco, California in the USA that was founded in 1997. The first version of ZoneAlarm Internet security software was released in 2000. Soon after, in 2004 Zone Labs was acquired by Check Point. Founded in 1993 in Ramat-Gan, Israel, Check Point is a computer security company that creates products for IT security, including network security, endpoint security, cloud security, mobile security, data security, and security management.

Designed for consumer and small business PCs and mobile phones, today, ZoneAlarm firewall and anti-virus products are used by nearly 100 million users to defend them from many forms of cyberattacks such as malware, ransomware, phishing, and .

Comodo Security Solutions, Inc. was founded by Melih Abdulhayoğlu, a Turkish-born electronics engineer and entrepreneur in 1998, in Bradford, UK. The cybersecurity company relocated to the US in 2004 and is now headquartered in Clifton, New Jersey, in the United States. Comodo Internet Security’s software package consists of Comodo Firewall and Comodo anti-virus.

Comodo firewall vs ZoneAlarm firewall: editions and platform compatibility

Comodo firewall and ZoneAlarm firewall are both freemium products, i.e. you can obtain a rather simple edition of them free of charge, but to get your hands on their full software package with all the features and services, you need to purchase a license.

Comodo has antivirus applications for Windows, macOS, and Linux, but the Comodo firewall can only be installed on Windows 10, Windows 7, Windows 8, Vista and XP.  The ZoneAlarm firewall only supports Windows 7, Windows 8 and Windows 10.

Comodo also has a free mobile security application for iOS and Android, which offers malware detection, VPN, ID protection, safe browsing, and AppLock. It has other features such as SD Card protection and cloud scanning option, too.

ZoneAlarm has three free products for PCs, including an antivirus, a firewall, and a free Chrome extension called ZoneAlarm Web Secure Free. But in order to be able to use all ZoneAlarm features, including anti-ransomware and Anti-Keylogger, you need to purchase the highest tier that is called ZoneAlarm Extreme Security. This version also gives you the multi-device option, as well as protection for iOS and Android devices.  ZoneAlarm also has a separate paid application for Mobile Security.


comodo firewall offers a lot of functionality in it’s free version


Comodo firewall vs ZoneAlarm firewall: featured characteristics

As a firm believer in Zero Trust Security, which basically means deny all and verify all before giving access, the Comodo firewall has introduced Default Deny Protection (DDP).

So, what does DDP do? In order to determine whether or not an application or file is allowed to access the system, most firewalls and anti-virus programs keep a list of known malware and viruses and use that list to decide which applications and files should be stopped. But in many cases, the list may be incomplete or out-of-date. In order to solve this problem, the Comodo firewall uses a list of over two million known PC-friendly applications, instead. So, if a file that is not on this safe-list tries to access your computer, the firewall immediately alerts you to inform you about the possibility of an attack. Of course, all of this occurs before the malware infects your computer, so your system is protected.

As for the ZoneAlarm firewall, it is based on defining three security zones - Trusted, Public, and Blocked.

By default, the Public Zone works in High Security mode, and the Trusted Zone works in Medium Security mode:

  1. High Security mode for Public Zone enables you to connect to the network resources, but bans other unauthorized network users from accessing the resources on your computer, therefore your computer is secure. Unknown networks and most wireless networks, even secured wireless networks, should be placed in the High security Public Zone.
  2. Medium Security mode for Trusted Zone secures your computer against possible attacks on Windows networking services but allows you to share resources with other systems on the network. Networks you know and trust, such as your home or business LAN and known protected wireless networks, should be in this Medium Security Trusted Zone.
  3. Blocked Zone - contains computers and networks that are known as dangerous or untrustworthy. So, they are blocked from exchanging any data with your computer.

ZoneAlarm firewall also benefits from OSFirewall, a proprietary technology that keeps out even the most innovative exploits around traditional firewalls, such as COM and SCM.


zoneAlarm offers free services


Comodo firewall vs ZoneAlarm firewall: similarities

Confronting Comodo firewall vs ZoneAlarm firewall reveals many similarities between the two security products. Let’s review some of their common features, here.

  • When comparing Comodo firewall vs ZoneAlarm firewall, in terms of offering two-way firewall protection, both software packages are winners, as they both check all the traffic coming in and out of your system and make sure no inbound or outbound attack is happening. For example, if there is an unknown piece of spyware on your machine, only a firewall with outbound protection can easily protect you by preventing the spyware from connecting to the Internet and sending out any kind of data. With Comodo Firewall, you also have the option of specifying exactly which applications are allowed to connect to the Internet and immediately being warned if any other program is trying to do so.
  • Both firewalls have a stealth mode, which prevents your system from responding to probing requests. As a result, your computer’s ports are hidden from hackers. Although in reality, the stealth mode does not make you 100% invisible, and a skillful and determined hacker might still be able to find ways to track you down. But it does definitely make your system much safer and their malicious job much more difficult.
  • Comodo firewall and ZoneAlarm firewall both allow you to turn on the Game Mode in which all the operations that could disturb a user’s gaming experience such as alerts, virus database updates or scheduled scans can be suppressed temporarily.
  • Sandbox technology is used in the Comodo firewall as well as the ZoneAlarm firewall. The sandbox is a virtual operating environment for untrusted programs – ensuring viruses and other malicious software are completely isolated from the rest of your computer. In order to achieve zero-day protection, the firewall uploads the suspicious files into a cloud space and open them in a virtual sandbox to check for any abnormal behavior. After examining and analyzing the suspicious files, if a file is identified as harmful, the firewall alarms the user immediately. Also, the cloud database of threats is updated with the new signatures, in order to prevent other users from being infected.
  • You can use the Training Mode in the ZoneAlarm firewall and the Comodo firewall, both. This mode, although not being the safest possible mode, helps to reduce the alerts created by the firewall. In the Training Mode, the firewall automatically learns the programs that you use the most, and later permits them to run without any alert interruptions. 
  • Both security tools offer some web protection and email security features. ZoneAlarm’s Chrome extension called ZoneAlarm Web Secure Free can protect you from Phishing attacks, malicious downloads, and dangerous websites. Its Anti-Phishing mechanism is a heuristic engine that scans all the websites you explore and test their characteristics before letting you enter any personal information. Likewise, Comodo offers email and web protection to a certain extent. For example, Comodo has a free Firefox-based web browser called IceDragon. Comodo's SiteInspector malware detection system is integrated into IceDragon. Comodo provides users with a Secure Shopping tool that allows them to safely surf the Internet and run programs from within a security-hardened virtual environment.
  • As part of their antivirus software, ZoneAlarm and Comodo security packages both enjoy the benefits of boot-time scans. Scanning during startup improves the chances of detecting and removing malware before it gets the opportunity to cause any damage.

Comodo’s IceDragon web browser


Comodo firewall vs ZoneAlarm firewall: weaknesses


  • None of these firewalls offer any specific solutions to prevent Brute Force Attacks .
  • As explained earlier, none of these firewalls support macOS or Linux, although Comodo antivirus supports Linux and macOS.
  • Unlike Comodo, ZoneAlarm software does not offer a custom scan option, i.e. you cannot scan just the drive or folder that you think may be compromised. Instead, you can either perform a quick scan of the data most likely to be compromised or a full scan of your entire system, though you have the option of customizing your full scan, to some extent.
  • Both firewalls are very incompatible with most other Internet security applications. Comodo firewall is incompatible with Bitdefender, Avast, Kaspersky and many other antivirus software packages. ZoneAlarm is only compatible with MS Windows Defender and is not compatible with any other antimalware software. So, to install either ZoneAlarm or Comodo, you must first uninstall any other anti-malware software. Otherwise, your system may experience stability problems and performance issues.





It looks like in the Comodo firewall vs ZoneAlarm firewall head-to-head, the former is stronger in terms of having many additional features. Comodo firewall does also have a better user interface and a more decent price, comparing to ZoneAlarm. But regarding the protection power, both firewalls are equally powerful and trustworthy.

It’s worth mentioning that neither Comodo firewall, nor ZoneAlarm firewall is specifically designed for remote desktop protection, so, if that is an important factor for you, you should probably try to find a better-equipped firewall in that regard, that offers features such as black times, black countries, and dynamically changing remote desktop port.

Published by Blogger at 2020 April 19