input: [No] 12 [Description] Remember to lock the keypad when not in use and to protect the device with a PIN or a password. Backup your details to another device such a PC in case your mobile phone is lost or stolen. Configure connections (such as Bluetooth and Wi-fi), especially in airports and public spaces, to be secure and if your mobile device has a built in firewall remember to enable it. [Recommendations] 
output: Use the security features available on your mobile phone