Its so so so much more than just that. They know everywhere you go and everyone you interact with and what they talk about and search for. Just a simple example is go check out placer.ai and see how they sell your location meta data to people like myself for marketing purposes. Source: about 1 year ago

Pulled using http://placer.ai software which tracks cell phones to determine visits by location. Source: over 1 year ago

It looks like this vice article is based off a Bloomberg article that is based off a placer.ai white paper that I can't read without giving them all of my personal information. I hate this type of journalism because it's impossible to get into the nitty gritty details of what was actually being looked at. Source: almost 2 years ago

- OR - set-up Square on your phone for online payments. Source: about 1 year ago

What is different than what Square has already done here:https://squareup.com/us/en/online-checkout. - Source: Hacker News / about 3 years ago