TikTok CEO faces off with US Congress over security fears

TikTok CEO Shou Zi Chew (Alex Brandon/AP)

The CEO of TikTok has faced a grilling from a US congressional committee in a rare public appearance where he made his own case for why the hugely popular video-sharing app should not be banned.

Shou Zi Chew’s testimony came at a crucial time for the company, which has acquired 150 million American users but is under increasing pressure from US officials.