A VPN (Virtual Private Network) enhances online privacy by creating a secure, encrypted tunnel between a user's device and the internet. This technology masks the user's IP address, making it difficult for external parties, including hackers and internet service providers, to monitor online activities. By routing traffic through remote servers, a VPN allows users to browse the web anonymously and access content that may be restricted in their region. This is especially important in maintaining privacy on public networks and protecting sensitive data from potential threats.