In the example you cited, it's a bit like the old white and yellow pages in the phone books that used to be distributed. There are varying degrees of information. If your information has appeared on the Internet, then it's all around the world because it's on several global servers. If you did the same search in Canada, you'd probably have found the same thing.
What's private is the information that's on your device and that you haven't shared. This goes back to previous questions. You have to be very careful when you share information. You have to read user contracts carefully and understand what you're committing to because you're dealing with a public network.