What is a VPN, and how can it be used to protect sensitive data during transmission over public networks?

A Virtual Private Network (VPN) is a technology that allows users to connect to a private network over the internet securely. It creates a secure and encrypted connection between the user's device and the internet, which ensures that sensitive data transmitted over the network cannot be intercepted or accessed by unauthorized parties. VPNs work by creating a secure tunnel between the user's device and the VPN server, which is typically located in a different geographic location. When a user connects to a VPN, all of their internet traffic is routed through this encrypted tunnel, which makes it difficult for hackers, government agencies, or ISPs to intercep....