My WeChat was hacked by the other party. Every time you send a friend verification request, it always shows how to reply if you fail to send it.

1. The other party blacklists his friends. After opening the other person's "personal photo album", friends can only see a horizontal line under the other person's avatar and nickname. When the other person changes the avatar, friends can still see the changed avatar. When a friend sends a message to the other party, a red warning symbol will appear on the left side of the message, and the message "Message sent, but rejected by the other party" will be displayed below. When you click on "Video Chat" or "Voice Chat" in "Video Chat" on WeChat, the message "The other party has blacklisted you and cannot video chat" or "The other party has blacklisted you and cannot voice chat" will appear. You need to click OK to return.

2. The other party blacklists the friend, and the friend will not be displayed in the other party's address book list, and the other party will not receive the message from the friend, but the other party will open "I-Settings-Privacy-Address Book Blacklist" on WeChat in turn to enter the blacklist list, and click on the friend nickname to open the friend's "Details", where the friend's avatar can be seen, and the other party can still see the changed avatar after the friend changes. If the friend has set privacy: I-Settings-Privacy-Turn off "Allow strangers to view ten photos", the other party can only see a horizontal line under the friend's avatar and nickname after opening the friend's personal photo album. If a friend turns on "Allow strangers to view ten photos", the other party can view up to ten photos in his personal album.