A virtual private network (VPN) is a technology that creates a secure connection over the internet. It allows users to send and receive data as if their devices were directly connected to a private network. This helps protect sensitive information from hackers and other threats, especially when using public Wi-Fi. VPNs also enable users to access content that may be restricted in their location. By masking the user's IP address and routing their internet traffic through a server in another location, VPNs can help bypass geographical restrictions on websites and services, providing greater online freedom and privacy.