VIPRE WiFi Shield is software that encrypts all the data you send and receive from the Internet. It works in conjunction with your firewall and antivirus software you probably already have installed on your computer. However, VIPRE WiFi Shield does not provide, and is not a substitute for, antivirus software or firewall protection, which provide different forms of data protection. We strongly recommend that you use VIPRE WiFi Shield in conjunction with VIPRE Advanced Security.