文章从大数据的角度，首先解读了美国政府最近发布的“大数据研究与开发计划”，重点分析了美国XDATA项目的定位、目的和预期成果。随后，文章从各个层面深入分析了大数据时代美国信息安全战略的特点。最后，得出结论：大数据已成为美国国家创新战略、国家安全战略、国家ICT产业发展战略以及国家信息网络安全战略的交叉领域，美国实际上已经确立了基于大数据的信息网络安全战略，目的在于解决当前的大数据核心技术挑战，全面强化未来的信息网络安全战略优势。% The article firstly overviewed“Big Data Research and Development Initiative”announced recently by the U.S. federal government from a perspective of big data-based information network security development, especially analyzed the positioning , objective and expected results of XDATA program. Subsequently, the article provided in-depth analysis of the features at different levels for U.S. information security strategy in the era of big data. As a conclusion, the article indicates that big data has become a cross-cutting area across national strategies for innovation, security, ICT industry development and information security, and U.S. has created a virtual information network security strategy on the basis of big data which aimed at addressing the core technical challenge and strengthening the predominance of information security strategy as whole in future.
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