Shanghai-based Xiaohongshu, or RedNote as it is known in English, is a Chinese social media platform growing in popularity as an alternative to TikTok, but with the same security risks.

Americans have shown that they won’t take national security threats at face value. They want the details. Lawmakers reportedly gathered for a top-secret briefing on the risks posed by TikTok before voting in favor of the bill back in March. At the time, the protestors outside Capitol Hill who opposed the ban were not made privy to its findings.

The influx of more than 700,000 new users has been driven by a looming U.S. ban on TikTok, used by 170 million Americans, on national security concerns.