TikTok's efforts to address US data privacy fears may have holes. A self-proclaimed whistleblower talking to The Washington Post says the social network's plan to protect American users' data, Project Texas, has major flaws. The former Trust and Safety team member claims the $1.5 billion initiative will still let TikTok connect to parent company ByteDance's Toutiao, a well-known Chinese news app. That link could theoretically allow China to access US data. A truly secure approach would require a "complete re-engineering" of the service's infrastructure, the ex-employee says.

The staffer also claims to have met with the offices of Sen. Chuck Grassley and Sen. Mark Warner to discuss the alleged weaknesses. Representatives for both senators acknowledged that meetings had taken place.