What is the key benefit of using a VPN?

The key benefit of using a VPN (Virtual Private Network) lies in its ability to provide a secure connection over a less secure network. When a user connects to a VPN, the data transmitted between the user's device and the VPN server is encrypted. This encryption creates a secure tunnel that protects sensitive information from potential eavesdroppers, such as hackers or malicious entities, especially when using public Wi-Fi connections. Additionally, it ensures that personal data remains confidential and secure from various threats while traveling across potentially insecure networks.

While other options touch on aspects of VPN usage, they do not capture the primary function. Increasing internet speed is not a guaranteed benefit of VPN usage, as in some cases, the added encryption and rerouting of data can actually lead to slower speeds. Unlimited internet access is misleading, as VPNs typically do not expand a user's bandwidth; they facilitate access to services that may be restricted in certain locations. Similarly, while some users utilize VPNs to bypass local restrictions, this is more of a byproduct of the technology rather than its core purpose. Overall, the defining feature of a VPN is its role in securing data transmission across less secure networks.