Two gay college students were outed on Facebook because of a privacy flaw in Facebook Groups. Users can be added to Facebook Groups by friends without the user’s permission or approval. Facebook is continually changing its privacy settings, trying to give users more control over what they want to share and with whom. The Wall Street Journal mention. University of Texas students Taylor McCormick and Bobbi Duncan came out to the world via Facebook via Facebook, but not in ways they ever intended. The two students had taken great pains to hide their Facebook profiles.
Source: https://thehackernews.com/2012/10/facebook-privacy-flaw-exposed-two.html