For VPN in the Corporate network sense, it's for easy access to your computers. You don't want to have to open ports on your router or hope that whatever world-

For VPN in the Corporate network sense, it's for easy access to your computers. You don't want to have to open ports on your router or hope that whatever world-accessible service you throw out there is secure - instead, Tailscale handles authentication, authorization (if you'd like to set up ACLs), and it handles NAT traversal without any open ports.