The foreign states that certain applications come from and that own them can use them in several ways as vectors of influence, particularly by using messages for their own benefit that they send to all kinds of people, going as far as to target very specific diasporas. For example, TikTok and Douyin in China generate educational information intended for North America and the west in general, and for the rest of the world.
TikTok is used for entertainment, which means that people get this information via the vector used: 15- to 20‑second messages. People will stay connected to this medium and stay permanently connected to the application. No matter what is served up to them, people will consume the information, which means they don't change. A psychologist could perhaps confirm the point I am making. So there is a danger that a message might be used to influence a person negatively.