Comodo Internet Security

Comodo Internet Security is the free, multi-layered, security application that offers complete protection from viruses, Trojans, worms, buffer overflows, zero-day attacks, spyware, and hackers. Built from the ground upwards with your security in mind, Comodo Internet Security combines powerful Antivirus protection, an enterprise-class packet filtering firewall, advanced host intrusion prevention, application control and anti-spyware in one supremely powerful application. Download Comodo Internet Security Offline Installer Setup!



The latest version sees a major leap forward in security and usability with the addition of cloud-based virus-scanning and behavior analysis of unrecognized files - making CIS unbeatable at detecting zero-day attacks. Under default settings, unknown and untrusted files are automatically scanned by cloud-based virus scanners then, while the file undergoes behavior analysis on the cloud server, it is run in a sandbox on your local machine so that it cannot modify or affect data on your 'real' system. Put simply, this ground-breaking method of protecting your PC means that only trusted applications are allowed to run on your computer. Malware and untrusted files get nowhere near anything important AND you get to use your computer without interruption from nagging alerts.

Comodo Internet Security also features a friendly graphical user interface; granular configuration options; easily understood and informative alerts; wizard-based detection of trusted zones and much more. The tool delivers enterprise-class protection and can be used out of the box - so even the most inexperienced users will not have to deal with complex configuration issues after installation. The app is available in many different languages and is free for life.

Features and Highlights

Antivirus
Tracks down and destroy any existing malware hiding in a PC.

Anti-Spyware
Detects spyware threats and destroys each infection.

Anti-Rootkit
Scan, detect & removes rootkits on your computer.

Bot Protection
Prevents malicious software from turning your PC into a zombie.

Defense+
Protects critical system files and blocks malware before it installs.

Auto Sandbox Technology™
Runs unknown files in an isolated environment where they can cause no damage.

Memory Firewall
Cutting-edge protection against sophisticated buffer overflow attacks.

Anti-Malware
Kills malicious processes before they can do harm.

Note: 30 days trial version of Comodo Internet Security Pro. After the trial period, you can enjoy the no-cost version of Comodo Internet Security Premium.