Vice Motherboad: All The Ways To Hack Your Phone: Phreaked Out (Episode 3) - How to Protect Yourself

http://motherboard.vice.com/read/tapped-all-the-ways-your-phone-can-be-hacked

Interesting video: https://www.youtube.com/watch?v=dysnKiXUlRU
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simple question: how to protect yourself? Sad the video was only about to 'phreak you out', not providing any actionable solutions on how to protect yourself.

I am especially intrigues by the Facebook plain text password. How it was done?

any links to follow on especially learning effective ways of protecting your interconnected mobile life? Sure, use a VPN, that's basic but what else?