At present, there are many sensitive data identification tools based on big data, which need to classify and classify the data according to their own business conditions, and then manage the data, which is also a part of data operation, but sensitive data will involve security and compliance, so it is best to choose some data security companies with security capabilities to cooperate. For example, the point Nanxing mentioned above is a conceptual way to integrate data operation security and platform to sort out data assets. In the later data operation, not only the sensitive data can be identified quickly, but also the application system access and data use security based on zero trust security architecture can be realized. It can be said that it can automatically hide key services from illegal devices or unauthorized devices, continuously verify the security of legal users and authorized devices, establish a multi-level security environment for application system access and data use, and ensure the online use and outflow security of business data. Otherwise, the identification is really too much, but if it is not safe, the identification is of little value.