What exactly is a VPN?
A VPN or Virtual Private Network provides an encrypted tunnel between two computers on the Internet. Each computer uses a shared secret to encrypt all data between them. Unlike a proxy service, once a VPN is established, all incoming and outgoing traffic between the two hosts is encrypted. It therefore encrypts not only your web browsing, but also your email, skype, VoIP etc. Most importantly, your ISP or anyone for that matter, cannot log, view, or control your Internet activity whatsoever. From the perspective of websites and other services on the Internet, when you are connected to the VPN your traffic will appear to originate from the VPN server. Therefore, if you connect to a UK VPN server your IP address will appear to be a UK IP address. Your actual IP address and location will be completely hidden and impossible to determine unless you voluntarily give this information out e.g. when completing an online form etc. In the diagram above, there are two users, Alice and Bob. Alice i
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