A Virtual Private Network, or VPN, is a technology that creates a secure, encrypted connection over the internet. It allows users to access their organization's network securely, even when they are not directly connected to it. This is done by transmitting data through a server, which encrypts the information to prevent unauthorized access. The VPN essentially extends a private network across a public network, like the internet, allowing remote users to send and receive data as if they were directly connected to the private network. Therefore, it provides users access to their organizations network while maintaining the security of the information transmitted.