https://www.nytimes.com/2017/04/23/technology/travis-kalanick-pushes-uber-and-himself-to-the-precipice.html?_r=0 [nytimes.com]
Or if NYTimes is paywalled, try this, http://www.businessinsider.com/apple-ceo-tim-cook-threatened-travis-kalanick-over-ubers-app-in-2015-2017-4 [businessinsider.com]
The issue in the reported early-2015 meeting was that Uber had a system to identify iPhones after they had been wiped and the Uber app had been deleted — something Uber was doing to combat driver fraud in China.
Apple didn't like that, and believed it violated its privacy policy for the App Store. “So, I’ve heard you’ve been breaking some of our rules,” Cook reportedly told Kalanick.
There is brazen, and then there is dumb.