Data was gathered through a “survey” that exposed data about the user and their friends/connections.
Short of quitting social media altogether, you should be wary of any of those surveys people seem to love.
Here is one major setting you can change to increase your security:
Remember, simple things like photos can reveal private information about your location, your friends, interests, even your political leanings. Be careful what you post.
Get more tips on social media safety from my sister-site, IncreaseYourSecurity.org