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<p>A VPN (or <em>Virtual Private Network</em>) is a way of connecting to a local network over the internet. For example, say you want to connect to the local network at your workplace while you're on a business trip. You would find an internet connection somewhere (like at a hotel) and then connect to your workplace's VPN. It would be as if you were directly connected to the network at work, but the actual network connection would be through the hotel's internet connection. VPN connections are usually <em>encrypted</em> to prevent people from accessing the local network you're connecting to without logging in.</p>