Get Comodo's award-winning Free Firewall Today!
protect your PC from viruses, malware, and hackers.
One step to gain peace of mind
Upgrade to CIS Pro for full security.
Includes Antivirus, Firewall, instant live
support and more. Only $39.99/year!
Comodo Firewall Pro introduces the next evolution in computer security: Default Deny Protection (DDPâ„¢). What is DDP? Most security programs maintain a list of known malware, and use that list to decide which applications and files shouldn't access a PC. The problem here is obvious. What if the list of malware is missing some entries, or isn't up to date?
DDP fixes this problem to ensure complete security. The firewall references a list of over two million known PC-friendly applications. If a file that is not on this safe-list knocks on your PC's door, the Firewall immediately alerts you to the possibility of attacking malware. All this occurs before the malware infects your computer. It's prevention-based security, the only way to keep PCs totally safe.
Please see latest release notes
Supported OS: XP 32bit, Vista/Win7/Win8/Win8.1/Win10 32 bit & 64 bit / 152 MB RAM / 400 MB space
Seems to be the best thus far. It provides the efficient security benefits and am impressed
Something new - great browsing tool with security options
The Comodo Firewall is a good product. It performs the as it claims.
A friend referred it to me and said its a award-winning Free Firewall. After started using it, I understood why.
I have been using the Comodo firewall for a long time and I more than happy with the features of the product
Makes sure that only known PC-safe applications execute
Stops viruses and malware before they access your computer…so it isn't too late to stop them.
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
Firewall remembers which software is allowed to operate and changes its alerts accordingly.
Cloud based behavior analysis system detects zero-day malware INSTANTLY.
Cloud based whitelisting of trusted publisher easily identifies a safe file and vendor
Suppresses operations that could interfere with a user’s gaming experience such as alerts, virus database updates or scheduled scans.
Provides users with the ability to lockdown their PC so only known good applications can run.
Stay current with the latest protection.
Warnings specify the level and type of possible threat from each source.
Tell the free firewall to scan upon installation and add all current applications to the safe-list.
Easily access an at-a-glance snapshot of current security settings
Quickly navigate through the various parts of Firewall protection without getting lost
Preset security settings for simple point-and-click setup
List of over two million known PC-friendly files and apps. Provides free firewall protection with the knowledge to let safe files and apps run.
Firewall software learns your trusted programs to minimize alerts
Get the most from Firewall with Comodo Internet Security Pro
Firewall protection is a batch of security measures for your PC, designed to keep malware, viruses, and hackers at bay.
It is. DDP™ grants you, the user, ultimate control of what's granted access to a PC.
Yes. Applications in the sandbox are run under a carefully selected set of privileges and will write to a virtual file system and registry instead of the real system. This means untrusted (but harmless) applications have the freedom to operate as usual while malicious programs are prevented from accessing or infecting your computer. This provides smoothest and most secure user experience possible.
...read moreFirewall is network security software, programmed to prevent illegal access that travels in and out of a private network. It helps to manage the incoming and outgoing traffic of network that is based on a specific set of protocol. It examines each an every activity and blocks if it does not meet the required security norms.
...read moreNot at all! Our free firewall software has access to Comodo's safe-list of over two million known PC-friendly applications. When one of them accesses your PC, the firewall won't bother you because there's no reason to worry.
...read moreOur firewall software is the only true firewall protection operating with Default Deny Protection™ technology to ensure your computer's security.
No – the sandbox is the first part of a trust decision engine. After an unknown application has been placed in the sandbox, Internet Security will also automatically queue it for submission to Comodo labs where it will be analyzed by our technicians. If it is found to be harmless then it will be added to the global safe list that will be downloaded by all Internet Security users in the next round of updates. Once it is added to the safe list, the application will no longer be run in the sandbox by Internet Security. If it is found to be malicious then it will be added to Comodo's list of malware signatures and will be deleted after the next round of updates.
...read moreOur free firewall contains detailed alerts letting you know the severity of the threat, and the type of file asking to execute.
Yes. However, enterprises looking to implement Internet Security on large networks of workstations would benefit from the centralized management capabilities of Comodo Advanced Endpoint Security.
When downloading the software you will also
receive access to a GeekBuddy expert, available
24/7. Click on Chat Now from your Management
Interface or click on the GeekBuddy icon on
your desktop.and vendor.
Make sure to have your order number or subscription information available.
For technical product questions visit our Support Home Page click on the "Submit a Ticket" link and select "Internet Security Support" from the dropdown menu and submit.
Check out our Online Help Guide for tips on how to use and configure our products and for detailed technical information.
Go to the Help Guide
Our Forum is populated with fellow Comodo users and developers alike and can quite often be the quickest and friendliest way to find answers to questions that you have.
Read the Forum
