No, the Protexx Data Guard Dog is NOT anti-virus software. It works alongside your anti-virus software providing a VPN (Virtual Private Network) to protect your identity and data-in-motion. A VPN is a data communications method by which the user’s Internet connection is made to be both private and inaccessible by others. The Data Guard Dog sets up a private connection which encrypts your data to and from the Protexx Internet access point, regardless of where you are connecting from.