Comodo Internet Security 4 is the free, multi-layered security application that protects your computer against internal and external attacks from viruses, Trojans, worms, buffer overflows, 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 and an advanced host intrusion prevention system called Defense plus in one supremely powerful application. Version 4.0 sees a major leap forward in security and usability with the addition of the new auto sandboxing feature - an isolated operating environment for unknown applications. Under default settings, unknown and untrusted applications are now automatically sandboxed so that they cannot make permanent changes to other processes, programs or data on your 'real' system. Put simply, this ground-breaking method of protecting your PC means the good stuff gets in, the bad stuff gets nowhere near anything important AND you get to use your computer without interruption from nagging alerts. It features a friendly graphical user interface; highly granular configuration options; easily understood and informative alerts; wizard-based detection of trusted zones and much more. Comodo Internet Security 4 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. Comodo Internet Security is available in many different languages, and comes included with a free 30 day trial of livePCsupport. Best of all, it's free for life.