Must ensure that password is used for protecting network, always keep your software updated, keep backup data, use anti-virus, install firewall and secure the wireless network.
Doctor Rob D’ Ovidio replied a question on face book security. He said make use of privacy settings and use secure and unidentifiable password. Control the friend request, control your timeline, control tagging activity and block people including various applications.
In another question, professor emphasized on safe usage of android devices. He replied, apply screen lock, disable visible passwords, set the device to lock automatically, manage Wi-Fi access, manage your settings for Bluetooth, keep track of location sharing services and keep encrypting your device