How many accounts the attackers breached remains unclear.

The order is a reprieve for TikTok, which had challenged a Trump-era directive in the courts.

The Commerce Department is reviewing whether to continue plans to ban WeChat and TikTok.

Facebook says it took down about 400 Instagram accounts and worked with TikTok and Twitter to help them crack down, too.

The video-sharing app says that if its fact-checking process can't verify the information in a video, users will get a warning about sharing it.

The Trump administration's actions against the two companies should be reviewed as part of a more "comprehensive strategy" on Chinese use of U.S. data and intellectual property, the White House said.