How does Tik Tok know if the other party has blacked himself out?

Tik Tok can check whether the other party has blackened himself as follows:

1. View the fan list: Click "I" in the lower right corner of Tik Tok's homepage to enter the personal page, and then click the portrait icon in the upper right corner of the page to enter the fan list. If you can't find the other party's account in the list, it may mean that it has been blacked out.

2. Send a private message test: try to send a private message to the other party. If the sending fails, you see the prompt "TA can't receive your message due to the privacy settings of the other party", which may indicate that you have been hacked.

3. View news and likes: Go to the other party's Tik Tok homepage and try to view the other party's videos, news or favorite content. If you see the prompt "You can't view TA's works due to the privacy settings of the other party" or "You can't view TA's news due to the privacy settings of the other party", it may indicate that you have been hacked.