Mariska Nunn, 20, was said to have had her phone in her lap, watching a TikTok video, as she returned home from her boyfriend ...

TikTok's fame and reach have sparked fear from U.S. officials on national security risks — here is the summary of events that have occurred so far.

Whether or not TikTok ends up staying or going, its long-term influence on the entertainment industry cannot be denied.

Donald Trump is downplaying the potential threat that TikTok poses to national security -- but numerous aides and allies are squarely at odds with the president.

TikTok. Love it or hate it, the app has been the centerpiece of the latest news cycle, as sports, politics, and pop culture ...