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The app asked his friends if it was ok, but obviously not him, as he was not a Facebook user at the time.

• doctorpangloss 14y ago
  Facebook officially does not ever perform any privacy-violating recommendations. Since he can't know that he's present in other people's contact lists, those contact lists are not used to create recommendations in the way you described.
  • deleted 14y ago
    [deleted]
  • mjs 14y ago
    I don't believe this is true. I've set up a Facebook account, and provided Facebook an email address only, and had reasonable "Friend Suggestions" appear presumably based on the presence of that email address in other people's address books. Facebook says that they save the contents of your address book, and that it might be used to suggest friends in the future: https://www.facebook.com/help/241275309301947/ https://www.facebook.com/help/241275309301947/.
  • lucb1e 14y ago
    But users do. If you have my email address in your contacts list on Hotmail and you allow Facebook to search for friends in your Hotmail account (most people do I think), then I think you're illegally passing on personally identifiable information.