The 13-story billboard, which covers nearly the entirety of the CES-adjacent hotel, reads: "What happens on your iPhone, stays on your iPhone".
The Consumer Electronics Show has kicked off in Las Vegas. It also included the URL to Apple's privacy website.
The massive billboard isn't far from the convention center where CES takes place, so it will doubtlessly be seen by thousands of attendees, as well as companies showing off their wares.
"If you value your privacy, buy an iProduct": that's the message Apple is trying to send with their giant ad in Las Vegas, which was bought to woo this week's army of CES visitors from Android and other competing products.
Apple, which does not maintain a regular presence at CES, did not immediately return FOX Business' request for comment.
Of course, workers have been setting up very impressive displays and booths that cover nearly 3 million square feet at the Las Vegas Convention Center, and 10 other locations.
Both Google and Amazon have a less than stellar privacy record.
The world's largest tech show gets fully underway tomorrow, but the government shutdown has forced several federal government speakers to cancel.
CES starts Tuesday and runs through Friday.
LG has followed in its recent tradition of pre-announcing many of its biggest CES products in the days ahead of the show.