“…There are threats to the information security of enterprises in these industries and their security needs are relatively prominent. The Internet industry, telecommunications industry, financial industry, medical industry and government organizations have different requirements and different degrees of information security needs [20,21]. Starting from the protection of privacy information in the context of big data, it is proposed that there are many security risks in the collection, storage and use of big data at present, especially the privacy leakage caused by big data, which brings serious troubles to Internet users [22,23].…”