TikTok first displayed a message saying the app was unavailable and later thanked Trump after it restored service.

Earlier this month, a White House official said that at least eight U.S. telecom companies had been breached by a Chinese hacking company.

A Jan. 18 Instagram post (direct link, archive link) includes an image with the State Department seal and what ... has indicated that he will work with us on a solution to reinstate TikTok once ...