A new warning from the director of the FBI suggests that people using TikTok in the United States might want to consider a new favorite social media app.

The Associated Press reports that Director Christopher Wray told an audience at the University of Michigan that the app is "in the hands of a government that doesn’t share our values, and that has a mission that’s very much at odds with what’s in the best interests of the United States."

"That should concern us," he added.

Wray said the FBI was particularly worried about the fact that the Chinese government has the ability to control the app’s recommendation algorithm, “which allows them to manipulate content, and if they want to, to use it for influence operations.”