大数据安全已成为制约我国大数据产业发展的主要障碍。大数据时代的到来,使得网络安全的问题更加凸显,其中一个主要表现就是公民个人信息和隐私安全问题。目前,电子邮件、微信、微博、视频发布、电子商务、科学计算、社交网络等已成为人们日常数据交流发布的平台。通过数据中大量的个人信息,可以关联分析和挖掘出公民个人身 Big data security has become a major obstacle to the development of China’s big data industry. The advent of the big data era has made cybersecurity more prominent. One of the major manifestations is the issue of citizen’s personal information and privacy. At present, e-mail, WeChat, Weibo, video publishing, e-commerce, scientific computing, social networking, etc. have become platforms for people to exchange daily data. Through the large amount of personal information in the data, we can analyze and mine the personalities of citizens