From Eagle Eye Digital Solutions:
A virtual private network (VPN) is a logical connection between two nodes. Data shared between these nodes are transferred through a secure encrypted tunnel. These systems use encryption and other security mechanisms to ensure that only authorized users can access the network and that the data cannot be intercepted. StealthWalker is a software-based VPN tool. It provides easy connectivity for the user and has a very straightforward mechanism to establish a VPN connection. StealthWalker creates an encrypted tunnel between your PC and the server, which means not only your browsing is secure, but also all communication going through the Internet, such as MSN, Skype, FTP, Email. are encrypted. These features can be very useful in situations like: Browsing securely using public Access Points and WiFi hotspots. Hiding your real identity online while using Forums, Blogs and Social networks. Encrypting and hiding your Internet traffic from ISP or local network attackers.
None. Free is not really free when you're pick-pocketed later.
This product is actually spyware, or it is bundled with spyware, that gives THEM the exclusive right to spy on you. Ridiculous. If I wanted my personal information sold I'd install MacAfee or Norton. At least they protect you from viruses. This does nothing but create wealth for them, at the cost of your privacy. Maybe that's why it's free? This companies moto is probably, "there's one born every minute". Think about it...