关键词: 云安全, 数据安全, 大数据安全, 数据生命周期, 数据安全风险控制

Abstract: Although cloud security has gradually matured in the past years, with the continuous expansion of new business scenarios such as big data and artificial intelligence, cloud security will face more and more challenges. This paper proposes a cloud security technology system based on big data security technology, which can effectively solve the shortcomings of traditional cloud security in data security and security systematization. The new cloud security system starts from the data centric security concept, and constructs a new cloud security technical framework based on big data technology. This paper focuses on the key technologies involved in the new cloud security system, and give the scheme design of the new cloud security system in the specific practice, and finally introduces the practical effect of digital Hami smart government big data platform.

Key words: cloud security, data security, big data security, data lifecycle, data security risk control