2016 annual global cyberspace security situation is still grim，hacker attacks affect national politics to attract people’s attention；outbreak of Internet security incidents，the US Department of Homeland Security issued Internet of Things security guidelines in a timely manner；global large-scale data leakage events occur frequently，data privacy High-risk vulnerabilities frequently become the fuse of the network security incidents；DDoS attacks become more frequent，the new means of attack led to the outbreak of the flow of traffic. This chapter will be on this year’s major security incidents into the analysis.