A Virtual Private Network, or VPN, is a technology that creates a secure and encrypted connection over a less secure network, such as the Internet. It allows users to send and receive data as if their devices were directly connected to a private network, enhancing privacy and security. By using a VPN, individuals can mask their IP address, making their online actions harder to trace. This is particularly useful for accessing restricted content, protecting sensitive information on public Wi-Fi, and maintaining anonymity while browsing the web.