Abstract: This paper demonstrates the importance of information security under the big data environment through frequent information security incidents and relevant literature in recent years. Combining the major information security events at home and abroad, the new characteristics of information security under the big data environment, including comprehensive security, scale security, ubiquitous security and cross-domain security, are expounded. It summarizes the challenges of information security under the big data environment and puts forward new requirements, new paths and new ideas for information security management. Meanwhile, it discusses information security detection technologies and its development trends in the big data environment. Finally, the article describes the work done by the Guizhou Aerospace Institute of Measuring and Testing Technology in the field of big data security in recent years, and the perspectives of the development trend of information security detection technology are going to be discussed. These are of great theoretical and practical value for Guizhou Province to implement the great action of “Million Enterprise Integration”, fight against the “Digital Economy”, and to promote China's implementation of the cyber power strategy, national big data strategy and national security strategy.

Key words: big data, information security, detection technology, cyber powers, national security

摘要： 通过近年来信息安全频发事件和文献资料论证了大数据环境下信息安全的重要性.结合国内外信息安全重大事件，阐述了大数据环境下信息安全新特征，包括综合安全、规模安全、泛在安全及跨域安全等；总结了大数据环境下的信息安全所面临的挑战，提出信息安全管理新要求、新路径及新理念的应对措施；探讨了大数据环境下信息安全检测技术及其发展趋势；陈述了近几年来贵州航天计量测试技术研究所在大数据安全方面所做的工作，并对大数据环境下信息安全检测技术的发展趋势进行了展望.这对贵州省实施“万企融合”大行动、打好“数字经济”攻坚战，推动我国实施网络强国战略、国家大数据战略和国家安全战略都具有重要的理论意义和实践价值.

关键词: 大数据, 信息安全, 检测技术, 网络强国, 国家安全