What is the main function of Virtual Private Networks (VPNs)?

The main function of Virtual Private Networks (VPNs) is to create a secure communication channel over public networks. This is achieved by encrypting the data that travels between the user's device and the VPN server, ensuring that sensitive information remains protected from potential eavesdroppers on unsecured networks, such as public Wi-Fi. By establishing a secure tunnel through which data is transmitted, VPNs provide privacy and security, allowing users to connect to remote networks as if they were directly connected. This not only protects the integrity and confidentiality of the data but also helps shield user identities and locations from unwanted surveillance.

The other options do not fully capture the primary purpose of VPNs. While simplifying network access and providing a platform for secure virtual meetings can be benefits associated with VPN use, these do not represent the core function of what VPNs are designed to do. Improving internet bandwidth is also not a feature of VPNs; in fact, while VPNs can provide secure connections, they may potentially reduce bandwidth or internet speeds due to the added encryption and routing of data.