TikTok is differentiating itself from other online platforms by saying it will not introduce end-to-end encryption (E2EE) for instant messaging. This decision means the company will be able to read messages sent between users, raising privacy concerns even after separating its US operations from its Chinese owner.
See also: TikTok in the US introduces 'Local Feed'

End-to-end encryption ensures that only the recipients of messages can decrypt the content of the messages, preventing the companies that own the apps from accessing the conversations. Most messaging services either already use E2EE or plan to implement it. Apps like iMessage, FaceTime, WhatsApp, Signal, Facebook Messenger, and Google Messages use E2EE.
Instagram is in the process of adopting it by default, while Snapchat uses it for photos and videos and plans to expand it to text. Discord has announced that it will soon implement E2EE for voice and video calls. Telegram is an exception, as it does not use E2EE by default, but allows users to enable it through “Secret Messages”. X claims to use E2EE for instant messaging, although some dispute this claim.
See also: EU threatens TikTok with fine due to "addictive design"

Despite the trend, TikTok told BBC News that it would not adopt E2EE, citing the decision as a security measure. TikTok argues that E2EE could prevent police and security teams from accessing instant messages when necessary. The company stressed its commitment to protecting users, especially young people, from harm during a security briefing at its London office.
Earlier this year, TikTok’s US operations were officially separated from Chinese ownership, which theoretically means that all US user data will remain within the country. However, there are lingering doubts about this arrangement, and the company’s refusal to implement E2EE has raised concerns about potential access by the Chinese government. In addition, there are concerns about the US government’s access to the content of users’ messages.
See also: USA: Who's afraid of the new TikTok?

The advantages of E2EE generally outweigh the disadvantages, regardless of the government involved. Any service that allows the company to read messages is vulnerable to hacking attacks and government demands for access.
