The main use of a virtual private network (VPN) is to create a secure and encrypted connection over a less secure network, typically the Internet. VPNs enable remote users to access their organization's internal network while preserving privacy and security by masking their IP addresses. They are often employed to bypass geo-restrictions and maintain anonymity online. VPNs can protect sensitive data, especially when utilizing public Wi-Fi, making them essential for businesses and individuals who prioritize security and confidentiality in their Internet activities.