A virtual private network (VPN) enhances privacy online by creating a secure tunnel for internet traffic, encrypting data exchanged between a user’s device and the VPN server. This process masks the user's IP address, making it more difficult for third parties, such as hackers or advertisers, to track online activities. A VPN also allows access to geographically restricted content by providing an alternative IP address. By ensuring anonymity and safeguarding personal information, a VPN plays a vital role in maintaining online security and privacy.