This campaign is ripe for hijacking and inverting like the "you wouldn't steal a car" campaign.
"NO WHERE TO HIDE: (from criminals)... thought you were safe when writing innocuous private messages on Facebook? think again, criminals intercept the plaintext to commit identity fraud in your name. Thought you only had to worry about corporate surveillance of your location data? think again, now criminals can easily track you to break into your house while you are out. Thought your job was secure? think again, now criminals can build a comprehensive profile of your social and work activities to easily and effectively social engineer their way into your organisation, risking your livelihood."
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The other approach is to apply the same thinking to something non technical to more tangibly demonstrate how this is a bad idea. e.g:
"NO WAY TO RUN: we are banning wheels, because they help paedophiles make for a quick getaway after abducting their target. In future we plan on banning legs too."