VPN software is a tool that creates a secure connection between your device and the internet. It encrypts your data, making it difficult for hackers or third parties to access your information. This is especially useful when using public Wi-Fi networks, where security risks are higher. Additionally, VPN software allows users to change their virtual location by connecting to servers in different countries. This can help bypass geographical restrictions on content, enabling access to websites and services that may be blocked in certain regions. Overall, it enhances online privacy and security.