In 2017，major network security events continue to occur. “WannaCry” leads to massive blackmail incidents which makes ordinary people understand network blackmail，these loopholes which are related to supply chain product have been exposed，the global industrial internet security situation is getting more worse. The disclosure of confidential documents such as the case in New York Airport in Manhattan shows that data leakage is very serious，loopholes of camera terminals，routers and other intelligent terminals are frequently exposed，Internet of Things equipments increasingly become the main force of the botnet.