There are only two ways to seal the title, whether it is a new number or an old number, an active number or a passive number. Frequent friends have the risk of sealing the title. Joining the red envelope group, pornographic group and stock pushing group may be detected by the system, which is regarded as a gambling number and a clear code, and there is a potential risk of titles.

Wechat is a free application launched by Tencent on 2011121,which provides instant messaging service for intelligent terminals. It was created by the product team of Tencent Guangzhou R&D Center led by Zhang Xiaolong.