How does a Virtual Private Network (VPN) enhance security?

A Virtual Private Network (VPN) enhances security primarily by encrypting data and creating secure connections over the internet. When you use a VPN, your internet traffic is routed through a private server that encrypts your data, making it unreadable to unauthorized users and potential attackers. This encryption protects sensitive information such as personal details and credentials when transmitted over public networks, where the risk of interception is higher.

Additionally, the secure tunnel established by a VPN hides your IP address, providing anonymity and further enhancing your security by making it difficult for third parties to track your online activities. This layering of encryption and secure connectivity is crucial in safeguarding against data breaches and ensuring privacy during internet usage, particularly when accessing sensitive or confidential resources.

In contrast, other options such as improving network speed, creating public access points, or limiting access to local machines do not adequately address the primary security functions of a VPN. These factors may pertain to network performance or access control but do not encompass the critical aspect of data encryption and secure communication.