What is the primary function of a "VPN"?

The primary function of a VPN (Virtual Private Network) is to create a secure connection over the internet. This technology establishes an encrypted tunnel between a user's device and a VPN server, which protects the data being transmitted from eavesdroppers and potential attackers. By encrypting the data, a VPN ensures privacy and security, making it particularly useful when accessing public Wi-Fi networks or transmitting sensitive information.

This secure connection also helps in masking the user's IP address, adding an additional layer of anonymity and protection against tracking. While users might experience an impact on speed due to encryption overhead, the main purpose of a VPN is not to enhance internet speed but rather to safeguard data integrity and protect against unauthorized access. Other options revolve around functionalities not typically associated with VPNs, such as spam blocking or firewall management, which further underscores the central role of security in VPN operations.