ByteDance accused of helping China spy on Hong Kong activists

Mr Yu’s claims come as TikTok is under intense scrutiny around the world.

In March, TikTok’s chief executive Shou Zi Chew faced four-and-a-half hours of questioning at a US congressional hearing.

Mr Chew was quizzed by both Democrats and Republicans over the app’s data security and privacy practices, and its alleged ties to Beijing.