Who sees the data you share on Facebook?

Facebook & your privacy
Who sees the data you share on the biggest social network?
To find out, we queried Facebook and interviewed some two dozen others, including security experts, privacy lawyers, app developers, and victims of security and privacy abuse. We dug into private, academic, and government research, as well as Facebook’s labyrinthian policies and controls. And we surveyed 2,002 online households, including 1,340 that are active on Facebook, for our annual State of the Net report. We then projected those data to estimate national totals.