They found safe spaces on TikTok. A ban could devastate their communities.

President Biden signed legislation Wednesday that could ban TikTok, leaving users in the United States who have spent years building a home on the platform worried about losing the communities they have come to cherish.

As talk of a potential ban escalated, creators encouraged fellow users to contact lawmakers and voice their discontent about the measure, which is rooted in security concerns over the app’s Chinese ownership. TikTok’s parent company, ByteDance, has roughly nine months to sell the app to a U.S. company — or TikTok could be banned nationally.