@nifty VPN wifi (formerly @ nifty Anshin WiFi VPN) app uses VPN (Virtual Private Network = virtual private line) * to encrypt communication between smartphone and Nifty server, so it is less secure. Even if you use a Wi-Fi spot, it helps reduce the risk of eavesdropping and spoofing. * Create virtual communication tunnels, encrypt data and communicate. Like dedicated lines, it helps prevent data sniffing and tampering along the communication path. ■ Automatic VPN connection With Wi-Fi connectio