On November 20th, at the "Financial Evolution Theory: 2019 Beijing News Financial Technology Forum" hosted by the Beijing News, Zhou Yong, head of the New Network Bank Planning and New Technology Research Center, shared the latest observations and researches on the new network banking financial technology. And practice. Zhou Yong said that the issue of trusted data sharing, the recognition of data security protection, the privacy of data is a fact, is also a normal state. However, Zhou Yong believes that the integration of data is also a valuable place, and the data island itself may lose the value of data fusion. For example, we use blockchain technology, multi-party security technology, and federal learning technology to solve the problem of data trust sharing.