Apple may not be at CES this year; however, that hasn't stopped them poking fun at other companies who are likely to present at the show. A billboard that was almost certainly commissioned by the Cupertino giant had appeared on an exterior face of the Marriott Hotel in Las Vegas on January 5, 2019. It reads: "What happens on your iPhone, stays on your iPhone", alongside a black-and-white outline of a 2018 Apple flagship mobile device.
https://www.notebookcheck.net/Apple-s-initial-contribution-to-CES-is-a-giant-billboard-highlighting-the-company-s-privacy-related-advantages.391911.0.html
Are we just going to ignore the massive iCloud leak that happened a few years back? Does Apple really think that all of us have such a short memory?!
A leak is one thing while usage information is another.