The app’s availability in the U.S. has been thrown into jeopardy over data privacy and national security concerns.

The US Supreme Court has ended TikTok’s nine-month legal battle, forcing leaders both within the company and in Beijing to consider a dwindling set of alternatives for keeping the popular video-sharing app alive.

The Supreme Court unanimously upheld a law that threatens to shut down the wildly popular TikTok social media platform in the US as soon as Sunday, ruling that free speech rights must yield to concerns that Chinese control of the app creates a national-security risk.