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But if I don't install it then the people I call still get my information without my knowledge, don't they?

• Tyr42 12y ago
  No more information than was already public on facebook, according to your privacy settings, as far as I can see.
• gk1 12y ago
  Only if you're connected with them on Facebook. (As I understand it.)
  • tdkl 12y ago
    They can easily upload their contact lists with your number included when finding friends. So yeah, our numbers are already on FB thanks to our friends.
• ori_b 12y ago
  Thereis no new information being made public. Anything that can be seen through this can be seen through a a web browser already.