Chief Science Correspondent
Everyday, millions of people go online and post their families, their breakfast, their hometowns and even details of their less than honorable escapades. Their lives are on display for their friends, coworkers, relatives - and the world to see.
When internet users take part in social media, they automatically acknowledge a loss of privacy. And most will accept it. True, a Facebook user can manipulate his privacy settings in the hope of keeping his online life away from, say, an ex-girlfriend. Or a boss. Or just a complete stranger.
But the reality is that most of us know that what users post online automatically becomes public information.