The primary function of a VPN (Virtual Private Network) in terms of user privacy is to create a secure and encrypted connection between the user's device and the internet. This encrypted tunnel helps protect sensitive data from eavesdropping and prevents unauthorized access to the user’s online activities. By masking the user's actual IP address, a VPN enhances anonymity, allowing individuals to browse the internet more privately. Additionally, it can help users bypass geographical restrictions imposed on content, improving access to information.