Online Armor Free

Online Armor FREE is a powerful firewall for Windows - the only FREE firewall that provides 100% protection against data leaks in the basic setup! It's simple to use, powerful - and absolutely free. Online Armor is straightforward and easy to use.

Online Armor includes powerful features known as "HIPS" that give you the ability to prohibit all unknown programs from running for as long as you want. This allows you to defend against new attacks. Of course, programs that Online Armor knows are safe will run without problems.

This is different from a pure antivirus program - the latter will allow any program to run if it doesn't know it's a virus. Which means it has to have the exact same sample in its database before it can do anything about it. Your antivirus will absolutely ignore programs it doesn't recognize - which unfortunately includes new viruses.