TikTok Assures U.S. Lawmakers it's Working to Safeguard User Data From Chinese Staff

Following heightened worries that U.S. users' data had been accessed by TikTok engineers in China between September 2021 and January 2022, the company sought to assuage U.S. lawmakers that it's taking steps to "strengthen data security."
The admission that some China-based employees can access information from U.S. users came in a letter sent to nine senators, which further noted that the

chinese data lawmakers staff tiktok working