“It’s Google, the social also-ran, that knows your real secrets. It knows the things you wouldn’t ask your friends. It knows things you can’t ask your spouse. It knows the things you haven’t asked your doctor yet. It knows things that you can’t ask anyone else and that might not have been asked at all before Google existed. Google’s servers are a repository of the developed world’s darkest and most heartbreaking secrets, a vast closet lined with millions of digital skeletons that, should they escape, would spare nobody.”
(https://www.buzzfeednews.com/article/jwherrman/why-google-not-facebook-knows-your-darkest-secre)