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Block specific apps from accessing the Internet. Install Firewall Client software on and bit Windows-based computers. Manage unified threat and control user Internet activity and productivity.

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. Not 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.

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.

Our free firewall contains detailed alerts letting you know the severity of the threat, and the type of file asking to execute. However, enterprises looking to implement Internet Security on large networks of workstations would benefit from the centralized management capabilities of Comodo Advanced Endpoint Security.

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. No Thanks, I just have 1 PC. Internet Security. Free Firewall. Not sure about upgrade? Get a Firewall Protection first! User Reviews.