What is the main function of a VPN (Virtual Private Network)?

The primary function of a VPN, or Virtual Private Network, is to encrypt network traffic and ensure privacy. By creating a secure tunnel between the user's device and the VPN server, a VPN protects the data transmitted over the internet from eavesdropping and interception by unauthorized parties. This encryption is crucial for maintaining confidentiality, especially when using unsecured networks, such as public Wi-Fi.

In addition to encrypting traffic, VPNs also allow users to mask their IP addresses, further enhancing privacy and anonymity online. This makes it more difficult for websites and service providers to track user activity or identify their physical location.

While enhancing network performance may be an associated benefit in some cases, it is not the primary purpose of a VPN. Similarly, providing direct internet access is a basic function of any internet connection, and facilitating video conferencing is not a main feature of VPN technology, though it can be used to improve the security of such communications.