There are three basic types of VPN services: remote access, mobile, and site-to-site. Remote access VPN services are the most popular for consumers and the ones you are most likely to encounter. These services provide a secure connection from your computer, to a remote server, and on to the internet. This pathway is known as a tunnel and the best VPN services provide complete security and encryption throughout the entire tunneling process. All of the VPN service providers we feature in our list of the 10 best VPNs are considered remote access. Mobile VPN services are really the same as remote access VPNs. You still connect to a remote server and all of your browsing activity and personal data is encrypted and protected. The difference here is that the VPN is specifically designed to work on mobile devices which means it can handle network switching without breaking the connection. Virtually all VPN service providers offer mobile VPNs for phones and tablets. If you find one that doesn't, or that doesn't work on your device, keep looking because there are dozens that will. Site-to-site VPN services are primarily used for business. There are extranet site-to-site networks that allow a set of businesses to securely tunnel into each other's systems and intranet site-to-site systems that allow remote employees to tunnel into their company's intranet and conduct their electronic business as if they were onsite.