TikTok users fear app shutdown as security concerns grow Amazon told employees they needed to delete the short-form video app from work phones immediately, but later reversed the decision. TikTok users are urging followers to connect with them on other social media sites as they fear a shutdown of the app in the United States. Fears over TikTok’s Chinese ownership are setting up a battle between the Trump administration and the site’s users. The security concerns even led Amazon to briefly prohibit use of the social media site by its workers Friday morning, only to backtrack later in the day, calling the ban a mistake. On Friday, Amazon sent an email to employees ordering them to delete the app from phones that also have access to Amazon email accounts, citing “security risks,” according to a copy of the message shared with The Washington Post. (Amazon chief executive Jeff Bezos owns The Post.) Amazon spokeswoman Jaci Anderson said later on Friday that the email was sent in error.