a process in which information that relates to a particular person, for example, a name or email address, is changed to a number or name that has no meaning so that it is impossible to see who the information relates to

The data typically passes through a pseudonymization service.

Pseudonymization uses a form of encryption to translate identifiable personal data to unique artificial identifiers called pseudonyms. 假名化使用一种加密形式将可识别的个人数据转换为唯一人工标识符，称为伪名。