A Virtual Private Network is a way to create a secure “tunnel” between two networks. For example, you use a VPN on TryHackMe to access the private network on which the machines operate. VPNs are also commonly used for an employee to log into their workplace when they are not on site (such as working from home or travelling for business matters). VPNs are also used where networks (such as coffee shops) do not provide encryption, and are a great way of preventing others from reading your network traffic.