You need to read this (Privacy for Humans By Alexandra Ross). The world is changing and YOU need to remain in charge of your life's privacy settings. This book is a helpful guide to both THINK about it...and DO SOMETHING about it.
I found Privacy for Humans to be a nightlight in the darkness; through the use of simple explanations and diagrams, the book suggests the adoption of a "mindfulness" approach and suggests steps you can take to protect yourself.
Who’s in control of your reputation? It might seem like a rhetorical or even ridiculous question, but it’s at the center of an emerging trend which may soon shape our fundamental social and economic institutions. As we voluntarily and involuntarily share enormous amounts of personal data, companies, governments, and even other individuals are increasingly interested in using this information to produce a pixel-perfect picture of who we are. In some sense this isn’t new. Credi