The main three routes of transmission of the ransomware detected by the Velvet Threat Intelligence System., Beijing, September 21 (Cheng Chunyu) Since the outbreak of the wannacry ransomware virus in May last year, the domestic blackmail virus has been in a high state. According to the monitoring and evaluation of the “Cotton Threat Intelligence System”, from the beginning of this year to mid-September, the ransomware virus has attacked more than 2 million terminals, and the number of attacks has reached more than 17 million times, and the overall trend is on the rise.