Owning a private plane just isn’t what it used to be.

Citing security risks and privacy rights, the wealthiest of ultra-wealthy jet owners have had it with tracking websites and social media accounts dedicated to pinpointing their exact whereabouts as they move through the skies.

Last week Elon Musk, the world’s second-richest man, suspended dozens of Twitter accounts belonging to a 20-year-old college student who had been posting the routes of private jets, including Musk’s Gulfstream G650. “Any account doxxing real-time location info of anyone will be suspended, as it is a physical safety violation,” Musk tweeted.

Earlier this year, Bernard Arnault, the world’s richest man, sold his company’s private plane after growing frustrated that his air travel routes were being broadcast. The French business magnate told a radio station in October: “The result is that no one can see where I go because I rent planes when I use private planes.”

The right of billionaires to travel in secrecy is a niche concern, to say the least. But it’s one that has been thrust into the spotlight after those high-profile moves, especially as Musk has contended that measures he took to block his plane’s location were being ignored.

Flight tracking data has long been publicly available for…