On Facebook and Twitter your privacy is at risk

Individual choice has long been considered a bedrock principle of online privacy. If you don’t want to be on Facebook, you can leave or not sign up in the first place. Then your behavior will be your own private business, right?

The new study presents powerful evidence that the answer to that question is no. It shows that privacy on social media is like second-hand smoke. It’s controlled by the people around you.

Full article: Study: On Facebook and Twitter your privacy is at risk—even if you don’t have an account