A VPN gateway is a network device that connects two or more networks securely over the internet. It acts as a bridge between a private network and a public network, allowing users to send and receive data while keeping their information encrypted and safe from unauthorized access. This is particularly useful for businesses that need to protect sensitive data when employees work remotely. When a user connects to a VPN gateway, their internet traffic is routed through a secure tunnel, masking their IP address and location. This helps maintain privacy and security, making it harder for hackers or third parties to intercept data. Overall, a VPN gateway enhances online security and provides a safer browsing experience.