Developer's DescriptionBy SprintSprint Secure Wi-Fi automatically encrypts your data when you connect to an unsecure Wi-Fi network.Sprint Secure Wi-Fi automatically encrypts your data when you connect to an unsecure Wi-Fi network. As soon as an unsecure Wi-Fi network is detected, Secure Wi-Fi enables a VPN connection to make sure no one can steal your passwords, hijack your login, or monitor your activity. Once the phone disconnects from the unsecure Wi-Fi network, the VPN connection automatically turns off.