VPNS

Virtual Private Networks (VPNs) create encrypted tunnels over public infrastructure to secure data transit and mask IP addresses.

VPNs establish point-to-point tunnels using protocols like AES-256 encryption and OpenVPN or WireGuard to shield traffic from interception. By routing packets through a remote server, they hide a user's true IP address and bypass geographic content restrictions (geofencing). Modern implementations like Cisco AnyConnect or NordVPN utilize IKEv2 for rapid reconnection on mobile devices and Kill Switches to prevent data leaks if the connection drops. This architecture is essential for remote workforces accessing corporate intranets and individuals seeking privacy on unsecured public Wi-Fi.

https://www.cisco.com/c/en/us/products/security/vpn-endpoint-security.html