337
However , the volume of ransomware attacks is still increasing and their speed , scale , sophistication and success in evading detection with the growth in file-less and memory - based malware , explains why ransomware will continue to be a major threat to CISOs in 2018 and beyond . ”
 None
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: ransom 
  Option: victim, attacker, payment method, attack pattern, damage amount, tool, time, price, place 
Text: {0} 
Answer:
 None