Recently, the national mutual gold Committee and the Ministry of mutual gold Safety Technology Key Laboratory opened mutual gold open class financial security assistant APP, the contents of the course include the Internet Finance and block chain related knowledge. Mutual gold open course content consists of two aspects, one is knowledge of Internet banking, including many areas of finance, science and technology education of the investors, asset allocation and national policy; the two is on the cutting edge of technology, mainly focus on the block chain related basic knowledge, including many aspects of smart contracts, lightning network, cryptography etc..